Golfergirl, check your PC and see if you have .NET Framework installed. Go to the Add\Remove applet in Control Panel. It occured to me that Roxio might require .NET Framework.
If you don't have it, you can download it from Microsoft here: Download details: .NET Framework Version 1.1 Redistributable Package
And be sure you have all the latest Windows updates.
Also, do you have any other Roxio programs installed on the PC?