JPMP CAPITAL LLC

Row 6 · 2004-12-10 · Grant · Acquired 10,000 · Balance 10,000

F2: The stock options were granted to Jeffrey Walker, a director of the Issuer, President of J.P. Morgan Partners (SBIC), LLC ("JPM SBIC"). Mr. Walker is obligated to exercise the options, and to transfer any shares issued under the stock options to JPM SBIC, at the request of JPM SBIC. In July 2002, the stock options were transferred to JPM SBIC.

F1: These stock options are immediately exercisable.

Row 2 · Balance 25,000

F2: The stock options were granted to Jeffrey Walker, a director of the Issuer, President of J.P. Morgan Partners (SBIC), LLC ("JPM SBIC"). Mr. Walker is obligated to exercise the options, and to transfer any shares issued under the stock options to JPM SBIC, at the request of JPM SBIC. In July 2002, the stock options were transferred to JPM SBIC.

F1: These stock options are immediately exercisable.

Row 3 · Balance 5,000

F2: The stock options were granted to Jeffrey Walker, a director of the Issuer, President of J.P. Morgan Partners (SBIC), LLC ("JPM SBIC"). Mr. Walker is obligated to exercise the options, and to transfer any shares issued under the stock options to JPM SBIC, at the request of JPM SBIC. In July 2002, the stock options were transferred to JPM SBIC.

F1: These stock options are immediately exercisable.

Row 5 · Balance 5,000

F1: These stock options are immediately exercisable.

F3: These stock options were issued to J.P. Morgan Partners, LLC, the investment advisor to JPM SBIC.

Row 1 · Balance 3,208,240

Row 4 · Balance 5,000

F1: These stock options are immediately exercisable.

Row 10 · 2006-06-22 · Grant · Acquired 10,000 · Balance 10,000

F9: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC. The option is immediately exercisable. Shares subject to the option vest monthly over 12 months. The Reporting Person has no pecuniary interest in such securities.

Row 7 · Balance 10,000

F6: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is a Managing Director of J.P. Morgan Partners (SBIC), LLC ("JPM SBIC"). Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC. The option is immediately exercisable. Shares subject to the option vest monthly over 48 months. The Reporting Person has no pecuniary interest in such securities.

Row 8 · Balance 2,500

F7: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC. The option is immediately exercisable. Shares subject to the option vest monthly over 12 months. The Reporting Person has no pecuniary interest in such securities.

Row 9 · Balance 50,000

F8: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC. The option is immediately exercisable. One-quarter of these shares are immediately vested, the remainder of the shares will vest in equal monthly installments over 48 months. The Reporting Person has no pecuniary interest in such securities.

Row 1 · Balance 2,886,121

Row 2 · Balance 234,689

F1: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors, L.P. The Reporting Person has no pecuniary interest in such securities.

Row 3 · Balance 35,134

F2: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors A, L.P. The Reporting Person has no pecuniary interest in such securities.

Row 4 · Balance 118,118

F3: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman), L.P. The Reporting Person has no pecuniary interest in such securities.

Row 5 · Balance 13,198

F4: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman II), L.P. The Reporting Person has no pecuniary interest n such securities.

Row 6 · Balance 81,769

F5: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P. The Reporting Person has no pecuniary interest in such securities.

Row 1 · 2004-12-30 · Sale · Disposed 147,134 · Balance 2,323,666

Row 6 · 2004-12-30 · Purchase · Acquired 147,134 · Balance 147,134

F5: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P. ("Selldown").

Row 2 · Balance 397,975

F1: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors, L.P.

Row 3 · Balance 201,635

F2: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman), L.P.

Row 4 · Balance 55,380

F3: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors A, L.P.

Row 5 · Balance 22,483

F4: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman) II, L.P.

Row 1 · Balance 3,382,856

Row 2 · Balance 578,471

F1: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors, L.P.

Row 3 · Balance 251,691

F2: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman), L.P.

Row 4 · Balance 32,660

F3: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman) II, L.P.

Row 5 · Balance 101,211

F4: The amount shown represents the beneficial ownership of the Issuer's equity securities by JPMP Global Fund/Bill Barrett A, L.P.

Row 6 · Balance 41,095

F5: The amount shown represents the beneficial ownership of the Issuer's equity securities by JPMP Global Fund/Bill Barrett, L.P.

Row 7 · Balance 81,424

F6: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P.

Row 8 · Balance 112,992

F7: The amount shown represents the beneficial ownership of the Issuer's equity securities by JPMP Global Fund/Bill Barrett/Selldown, L.P.

Row 1 · 2004-10-28 · Sale · Disposed 1,000,000 · Balance 2,240,896

Row 2 · Balance 60,000

F1: These options were granted to Damion Wicker and Srinivas Akkaraju, directors of the Issuer. Mr. Wicker is Managing Director of JPMP Capital Corp., the general partner of JPMP Master Fund Manager, L.P. ("MF Manager"), the general partner of J.P. Morgan Partners (BHCA), L.P. ("JPM BHCA"). Mr. Akkaraju is a Principal at J.P. Morgan Partners, LLC and a limited partner of MF Manager. Mr. Wicker and Mr. Akkaraju are obligated to transfer any shares issued under the stock option to JPM BHCA.

Row 3 · Balance 20,000

F2: These options will become exercisable on June 12, 2004. They will vest in 48 monthly installments.

F1: These options were granted to Damion Wicker and Srinivas Akkaraju, directors of the Issuer. Mr. Wicker is Managing Director of JPMP Capital Corp., the general partner of JPMP Master Fund Manager, L.P. ("MF Manager"), the general partner of J.P. Morgan Partners (BHCA), L.P. ("JPM BHCA"). Mr. Akkaraju is a Principal at J.P. Morgan Partners, LLC and a limited partner of MF Manager. Mr. Wicker and Mr. Akkaraju are obligated to transfer any shares issued under the stock option to JPM BHCA.

Row 1 · 2004-03-31 · Conversion · Acquired 16,397,468 · Balance 19,137,449

F1: The amounts shown represent the direct beneficial ownership of the Issuer's equity securities by Fleming US Discovery Fund III, LLC (the "US Fund") and Fleming Discovery Offshore Fund III, LLC (the "Offshore Fund"). In addition, the other reporting owners on this Form 4 have an indirect beneficial ownership interest (which is described in footnotes 2, 3, 4 and 5 below). The US Fund, as Designated Reporter, is executing this report on behalf of all reporting owners, each of whom has authorized it to do so. Each of such persons disclaims beneficial ownership of the securities to the extent it exceeds such person's pecuniary interest therein.

F2: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to Fleming US Discovery Partners, L.P. ("Discovery Partners") because Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to Discovery Partners is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within the US Fund and the Offshore Fund.

F3: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to Fleming US Discovery, LLC ("Discovery, LLC") because Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to Discovery, LLC is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery Partners, the US Fund and the Offshore Fund.

F4: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to JPMP Capital Corp. because JPMP Capital Corp. is the controlling member of Discovery, LLC. Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to JPMP Capital Corp. is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery, LLC, Discovery Partners, the US Fund and the Offshore Fund. Designees of JPMP Capital Corp. on the Board of Managers of Discovery, LLC have voting and dispositive power over the securities shown in Table I and Table II, but no pecuniary interest.

F5: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to J.P. Morgan Chase & Co. because J.P. Morgan Chase & Co. is the sole stockholder of JPMP Capital Corp. JPMP Capital Corp. is the controlling member of Discovery, LLC. Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to J.P. Morgan Chase & Co. is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery, LLC, Discovery Partners, the US Fund and the Offshore Fund.

Row 2 · 2004-03-31 · Other · Acquired 4,454 · Balance 129,540

F8: On March 31, 2004, the Issuer paid in kind the following dividends in the form of an aggregate of 4,454 shares of Series A Preferred, in accordance with the terms of the Series A Preferred (x) to the US Fund, 3,839 shares of Series A Preferred and (y) to the Offshore Fund, 615 shares of Series A Preferred.

F6: As of the date hereof, the 129,540 shares of Series A Preferred are convertible at a conversion price of $0.79 per share into 16,397,468 shares of Common Stock.

F7: Note that shares of Series A Preferred are exercisable immediately upon issuance. Thus, the 129,540 shares of Series A Preferred were exercisable on their respective dates of issuance, as set forth in previous Section 16 filings. There is no expiration date for the conversion of the Series A Preferred; holders of the Series A Preferred are entitiled to convert the Series A Preferred into Common Stock at any time.

F1: The amounts shown represent the direct beneficial ownership of the Issuer's equity securities by Fleming US Discovery Fund III, LLC (the "US Fund") and Fleming Discovery Offshore Fund III, LLC (the "Offshore Fund"). In addition, the other reporting owners on this Form 4 have an indirect beneficial ownership interest (which is described in footnotes 2, 3, 4 and 5 below). The US Fund, as Designated Reporter, is executing this report on behalf of all reporting owners, each of whom has authorized it to do so. Each of such persons disclaims beneficial ownership of the securities to the extent it exceeds such person's pecuniary interest therein.

F2: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to Fleming US Discovery Partners, L.P. ("Discovery Partners") because Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to Discovery Partners is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within the US Fund and the Offshore Fund.

F3: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to Fleming US Discovery, LLC ("Discovery, LLC") because Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to Discovery, LLC is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery Partners, the US Fund and the Offshore Fund.

F4: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to JPMP Capital Corp. because JPMP Capital Corp. is the controlling member of Discovery, LLC. Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to JPMP Capital Corp. is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery, LLC, Discovery Partners, the US Fund and the Offshore Fund. Designees of JPMP Capital Corp. on the Board of Managers of Discovery, LLC have voting and dispositive power over the securities shown in Table I and Table II, but no pecuniary interest.

F5: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to J.P. Morgan Chase & Co. because J.P. Morgan Chase & Co. is the sole stockholder of JPMP Capital Corp. JPMP Capital Corp. is the controlling member of Discovery, LLC. Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to J.P. Morgan Chase & Co. is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery, LLC, Discovery Partners, the US Fund and the Offshore Fund.

Row 3 · 2004-03-31 · Conversion · Disposed 129,540 · Balance 0

F6: As of the date hereof, the 129,540 shares of Series A Preferred are convertible at a conversion price of $0.79 per share into 16,397,468 shares of Common Stock.

F7: Note that shares of Series A Preferred are exercisable immediately upon issuance. Thus, the 129,540 shares of Series A Preferred were exercisable on their respective dates of issuance, as set forth in previous Section 16 filings. There is no expiration date for the conversion of the Series A Preferred; holders of the Series A Preferred are entitiled to convert the Series A Preferred into Common Stock at any time.

F1: The amounts shown represent the direct beneficial ownership of the Issuer's equity securities by Fleming US Discovery Fund III, LLC (the "US Fund") and Fleming Discovery Offshore Fund III, LLC (the "Offshore Fund"). In addition, the other reporting owners on this Form 4 have an indirect beneficial ownership interest (which is described in footnotes 2, 3, 4 and 5 below). The US Fund, as Designated Reporter, is executing this report on behalf of all reporting owners, each of whom has authorized it to do so. Each of such persons disclaims beneficial ownership of the securities to the extent it exceeds such person's pecuniary interest therein.

F2: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to Fleming US Discovery Partners, L.P. ("Discovery Partners") because Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to Discovery Partners is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within the US Fund and the Offshore Fund.

F3: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to Fleming US Discovery, LLC ("Discovery, LLC") because Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to Discovery, LLC is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery Partners, the US Fund and the Offshore Fund.

F4: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to JPMP Capital Corp. because JPMP Capital Corp. is the controlling member of Discovery, LLC. Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to JPMP Capital Corp. is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery, LLC, Discovery Partners, the US Fund and the Offshore Fund. Designees of JPMP Capital Corp. on the Board of Managers of Discovery, LLC have voting and dispositive power over the securities shown in Table I and Table II, but no pecuniary interest.

F5: The amounts shown in Table I and Table II represent the beneficial ownership of the Issuer's equity securities by the US Fund and the Offshore Fund, a portion of which may be deemed attributable to J.P. Morgan Chase & Co. because J.P. Morgan Chase & Co. is the sole stockholder of JPMP Capital Corp. JPMP Capital Corp. is the controlling member of Discovery, LLC. Discovery, LLC is the general partner of Discovery Partners. Discovery Partners is the general partner of the US Fund and the Offshore Fund. The actual pro rata portion of such beneficial ownership that may be deemed to be attributable to J.P. Morgan Chase & Co. is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within Discovery, LLC, Discovery Partners, the US Fund and the Offshore Fund.

Row 1 · 2004-12-31 · Sale · Disposed 86,322 · Balance 2,560,225

Row 6 · 2004-12-31 · Purchase · Acquired 86,322 · Balance 86,322

F5: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P.

Row 2 · Balance 229,704

F1: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors, L.P.

Row 3 · Balance 31,313

F2: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors A, L.P.

Row 4 · Balance 116,587

F3: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman), L.P. ("Cayman").

Row 5 · Balance 12,992

F4: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman) II, L.P. ("Cayman II").

Row 9 · 2005-06-09 · Grant · Acquired 17,500 · Balance 17,500

F6: One-twelfth of the options vest monthly commencing 06/09/05.

F4: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is a Managing Director of J.P. Morgan Partners (SBIC), LLC. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC.

Row 4 · Balance 4,285

F3: These options are fully vested.

F4: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is a Managing Director of J.P. Morgan Partners (SBIC), LLC. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC.

Row 5 · Balance 4,285

F3: These options are fully vested.

F4: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is a Managing Director of J.P. Morgan Partners (SBIC), LLC. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC.

Row 6 · Balance 10,000

F4: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is a Managing Director of J.P. Morgan Partners (SBIC), LLC. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC.

Row 7 · Balance 25,000

F4: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is a Managing Director of J.P. Morgan Partners (SBIC), LLC. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC.

Row 8 · Balance 17,500

F5: One-twelfth of the options vest monthly commencing 7/27/04.

F4: These options were granted to Rodney A. Ferguson, a director of the Issuer. Mr. Ferguson is a Managing Director of J.P. Morgan Partners (SBIC), LLC. Mr. Ferguson is obligated to transfer any shares issued under the option to JPM SBIC.

Row 1 · Balance 2,400,206

Row 2 · Balance 241,479

F1: The amounts shown represent the beneficial ownership of the Issuer's equity securities by J.P. Morgan Global Investors (SBIC), LLC ("JPM Global SBIC").

Row 3 · Balance 151,982

F2: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P.

Row 1 · 2004-12-30 · Sale · Disposed 38,114 · Balance 601,925

Row 6 · 2004-12-30 · Purchase · Acquired 38,114 · Balance 381,140

F5: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P.

Row 2 · Balance 101,421

F1: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors, L.P.

Row 3 · Balance 13,826

F2: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman), L.P.

Row 4 · Balance 51,478

F3: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors A, L.P.

Row 5 · Balance 5,736

F4: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman) II, L.P.

Row 7 · 2004-12-30 · Sale · Disposed 30,491 · Balance 4,815,400

F6: The conversion price of the Series A Convertible Preferred Stock is equal to the initial purchase price divided by $2.50, as adjusted for stock splits, stock dividends, combinations and other similar capitalizations of the Issuer's Common and Preferred Stock. Initially this results in a 1 for 10 conversion ratio. Each share of Series A Convertible Preferred Stock is entitled to 0.93 votes for each share of Common Stock into which such share of Convertible Preferred Stock could then be converted.

F7: All outstanding shares of the Issuer's Series A Convertible Preferred Stock are convertible at the holder's option into shares of the Issuer's Common Stock on a 10 to 1 basis any time after July 8, 2004. This right to convert does not expire.

Row 12 · 2004-12-30 · Purchase · Acquired 30,491 · Balance 304,910

F6: The conversion price of the Series A Convertible Preferred Stock is equal to the initial purchase price divided by $2.50, as adjusted for stock splits, stock dividends, combinations and other similar capitalizations of the Issuer's Common and Preferred Stock. Initially this results in a 1 for 10 conversion ratio. Each share of Series A Convertible Preferred Stock is entitled to 0.93 votes for each share of Common Stock into which such share of Convertible Preferred Stock could then be converted.

F7: All outstanding shares of the Issuer's Series A Convertible Preferred Stock are convertible at the holder's option into shares of the Issuer's Common Stock on a 10 to 1 basis any time after July 8, 2004. This right to convert does not expire.

F5: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P.

Row 8 · Balance 811,370

F6: The conversion price of the Series A Convertible Preferred Stock is equal to the initial purchase price divided by $2.50, as adjusted for stock splits, stock dividends, combinations and other similar capitalizations of the Issuer's Common and Preferred Stock. Initially this results in a 1 for 10 conversion ratio. Each share of Series A Convertible Preferred Stock is entitled to 0.93 votes for each share of Common Stock into which such share of Convertible Preferred Stock could then be converted.

F7: All outstanding shares of the Issuer's Series A Convertible Preferred Stock are convertible at the holder's option into shares of the Issuer's Common Stock on a 10 to 1 basis any time after July 8, 2004. This right to convert does not expire.

F1: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors, L.P.

Row 9 · Balance 110,610

F6: The conversion price of the Series A Convertible Preferred Stock is equal to the initial purchase price divided by $2.50, as adjusted for stock splits, stock dividends, combinations and other similar capitalizations of the Issuer's Common and Preferred Stock. Initially this results in a 1 for 10 conversion ratio. Each share of Series A Convertible Preferred Stock is entitled to 0.93 votes for each share of Common Stock into which such share of Convertible Preferred Stock could then be converted.

F7: All outstanding shares of the Issuer's Series A Convertible Preferred Stock are convertible at the holder's option into shares of the Issuer's Common Stock on a 10 to 1 basis any time after July 8, 2004. This right to convert does not expire.

F2: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman), L.P.

Row 10 · Balance 411,820

F6: The conversion price of the Series A Convertible Preferred Stock is equal to the initial purchase price divided by $2.50, as adjusted for stock splits, stock dividends, combinations and other similar capitalizations of the Issuer's Common and Preferred Stock. Initially this results in a 1 for 10 conversion ratio. Each share of Series A Convertible Preferred Stock is entitled to 0.93 votes for each share of Common Stock into which such share of Convertible Preferred Stock could then be converted.

F7: All outstanding shares of the Issuer's Series A Convertible Preferred Stock are convertible at the holder's option into shares of the Issuer's Common Stock on a 10 to 1 basis any time after July 8, 2004. This right to convert does not expire.

F3: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors A, L.P.

Row 11 · Balance 45,890

F6: The conversion price of the Series A Convertible Preferred Stock is equal to the initial purchase price divided by $2.50, as adjusted for stock splits, stock dividends, combinations and other similar capitalizations of the Issuer's Common and Preferred Stock. Initially this results in a 1 for 10 conversion ratio. Each share of Series A Convertible Preferred Stock is entitled to 0.93 votes for each share of Common Stock into which such share of Convertible Preferred Stock could then be converted.

F7: All outstanding shares of the Issuer's Series A Convertible Preferred Stock are convertible at the holder's option into shares of the Issuer's Common Stock on a 10 to 1 basis any time after July 8, 2004. This right to convert does not expire.

F4: The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman) II, L.P.

Row 13 · Balance 10,000

F8: These options were granted to Srinivas Akkaraju, a director of the Issuer. Mr. Akkaraju is obligated to transfer any shares issued under the Stock Option to J.P. Morgan Partners (BHCA), L.P. ("JPM BHCA") at the request of JPM BHCA.