Exhibit 12.1

Calculation of Ratios of Earnings of Fixed Charges

The following table sets forth, for each of the periods presented, the historical ratio of earnings to fixed charges. The historical ratios are prepared on a consolidated basis.

The ratio of earnings to fixed charges for each of the periods presented is determined by dividing earnings by fixed charges. Earnings consist of income (loss) from operations before income taxes and fixed charges. Fixed charges consist of interest incurred, amortization of debt discount and debt issuance costs, and an estimate of the interest portion of rent expense.

	Successor			Successor			Successor			Successor			Combined			Successor			Predecessor
	Year Ended December 31, 2009			Year Ended December 31, 2008			Year Ended December 31, 2007			Year Ended December 31, 2006			Year Ended December 31, 2005			March 18, 2005 to Dec 31, 2005			January 1, 2005 to March 17, 2005
	(dollars in thousands)
Earnings
Income (loss) before income taxes	$	(13,046	)	$	(28,820	)	$	(19,612	)	$	(25,546	)	$	(17,091	)	$	(15,904	)	$	(1,187	)
Add: Fixed charges per below		4,455			2,861			1,443			2,621			2,469			2,353			116
Earnings		(8,591	)		(25,959	)		(18,169	)		(22,925	)		(14,622	)		(13,551	)		(1,071	)
Fixed Charges
Interest expense		2,879			1,495			719			856			606			490			116
Amortization of debt discount and debt issuance costs		591			380			149			1,272			1,452			1,452			—
Estimate of interest portion of rent expense		985			986			575			493			411			411			—
Fixed Charges		4,455			2,861			1,443			2,621			2,469			2,353			116
Ratio of earnings to fixed charges		*			*			*			*			*			*			*
Coverage deficiency	$	(13,046	)	$	(28,820	)	$	(19,612	)	$	(25,546	)	$	(17,091	)	$	(15,904	)	$	(1,187	)

* The earnings were inadequate to cover total fixed charges.