Exhibit 12.1
Calculation of Ratio of Earnings to Fixed Charges
| 2001 | 2002 | 2003 | 2004 | 2005 | Six-months ended 30-Jun-06 |
|||||||||||||||||||
| Earnings (loss)– |
||||||||||||||||||||||||
| Loss before income taxes |
$ | (10,090 | ) | $ | (34,017 | ) | $ | (29,789 | ) | $ | (93,271 | ) | $ | (88,593 | ) | $ | (43,130 | ) | ||||||
| Add fixed charges: |
||||||||||||||||||||||||
| Interest expense on indebtedness |
$ | 692 | $ | 1,936 | $ | 990 | $ | 4,480 | $ | 6,556 | $ | 3,286 | ||||||||||||
| Estimated interest on rental expense |
341 | 329 | 300 | 1,611 | 1947 | 973 | ||||||||||||||||||
| Amortization of deferred closing costs related to convertible notes |
— | 294 | 156 | 521 | 816 | 408 | ||||||||||||||||||
| Amortization of discount on convertible notes |
— | 511 | 271 | |||||||||||||||||||||
| Total Adjusted Loss |
$ | (9,057 | ) | $ | (30,947 | ) | $ | (28,072 | ) | $ | (86,659 | ) | $ | (79,274 | ) | $ | (38,463 | ) | ||||||
| Fixed Charges– |
||||||||||||||||||||||||
| Interest expense on indebtedness |
$ | 692 | $ | 1,936 | $ | 990 | $ | 4,480 | $ | 6,556 | $ | 3,286 | ||||||||||||
| Estimated interest on rental expense |
341 | 329 | 300 | 1,611 | 1,947 | 973 | ||||||||||||||||||
| Amortization of deferred closing costs related to convertible notes |
— | 294 | 156 | 521 | 816 | 408 | ||||||||||||||||||
| Amortization of discount on convertible notes |
— | 511 | 271 | |||||||||||||||||||||
| Total Fixed Charges |
$ | 1,033 | $ | 3,070 | $ | 1,717 | $ | 6,612 | $ | 9,319 | $ | 4,667 | ||||||||||||
| Coverage deficiency |
$ | (10,090 | ) | $ | (34,017 | ) | $ | (29,789 | ) | $ | (93,271 | ) | $ | (88,593 | ) | $ | (43,130 | ) | ||||||