Sales for December through February were nearly double the number reported for the previous year. Beginning March 16 and ending April 15, Block is giving away 30 free copies of TaxCut daily. Check the Web site for details. Though there were no bugs in either program serious enough to warrant public announcements from their respective publishers, both TurboTax and TaxCut have published program updates both to finalize forms that the IRS had not yet finalized when the programs were launched, and to fix any elements of the products that were misbehaving. Check the Tools menu in TaxCut and Help menu in TurboTax to download any recent updates before you start entering data.
Additional information is available at both Web sites.
These sites continue to update through tax season, so revisit them if you're desperately seeking last-minute support. You give them your numbers, and they fill out the forms and sign the returns for you. Check out Web-based CPA services as you would any other. As far as the tax prep software itself goes, it's not too late. It's still out there, and your local retailer may have some good prices on it just now.