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EXHIBIT 12.1
<Table>
<Caption>
Nine Months Ended Seven Months Ended
September 30, Years Ended December 31, December 31,
-------------------- ------------------------------- --------------------
2003 2002 2002 2001 2000 2000 1999
-------- -------- -------- -------- -------- -------- --------
EARNINGS:
Loss before income taxes $(23,627) $(52,358) $(61,955) $ 12,469 $(66,837) $ (8,974) $(22,342)
Fixed charges 3,356 2,837 4,377 8,539 5,799 3,400 4,339
-------- -------- -------- -------- -------- -------- --------
TOTAL EARNINGS $(20,271) $(49,521) $(57,578) $ 21,008 $(61,038) $ (5,574) $(18,003)
======== ======== ======== ======== ======== ======== ========
FIXED CHARGES:
Interest expense $ 3,142 $ 1,743 $ 3,124 $ 695 $ 973 $ 627 $ 480
Amortization of debt issuance costs 119 42 82 162 27 16 16
Estimated interest portion of rent expense 95 144 191 164 171 100 117
Preferred stock dividend -- 908 980 7,518 4,628 2,657 3,726
-------- -------- -------- -------- -------- -------- --------
TOTAL FIXED CHARGES $ 3,356 $ 2,837 $ 4,377 $ 8,539 $ 5,799 $ 3,400 $ 4,339
======== ======== ======== ======== ======== ======== ========
Ratio of Earnings to Fixed Charges(1) -- -- -- 2.5 -- -- --
</Table>
(1) For the nine months ended September 30, 2003 and 2002, the years ended
December 31, 2002 and 2000 and the seven months ended December 31, 2000 and
1999, earnings were insufficient to cover fixed charges by approximately $23.6
million, $52.4 million, $62.0 million, $66.8 million, $9.0 million and $22.3
million, respectively.