As Nibiru suggested, it's probably a good time to find a compatible app for Windows 7, or upgrading to 7 Pro, and using the free XP Mode (it must be manually downloaded & installed).
If your version of Windows 7 was OEM installed from the factory (usually Windows 7 Home Premium), you can easily upgrade to Pro through the Start Menu for less than $100 (US Dollars). You purchase the key, go back to the Anytime Upgrade option, and enter the key that you purchased. That key is good only for the OS that you upgrade it from, it is tied to that license key, and not the computer itself.
Meaning that if you have to buy a new OS, due to a failed motherboard, or if you don't have reinstall discs (in case of hardware or software failure) to reinstall your original OS with. So it's a good idea to keep a set of reinstall discs handy.
The upgrade is simple, your files stay in place, it takes about 10 minutes for the upgrade to fully install. The computer must be connected to the internet at the time it's being upgraded. Afterwards, the only change that you'll see is the Professional name at startup.
That will entitle you to obtain XP Mode, at no further charge to you. You will probably have to enable hardware assisted virtualization (HAV) in the BIOS, instructions for different makes of computers can be found on the Windows Virtual PC home page. If your computer does not that option, that's OK, Windows has an update to allow you to run XP Mode. It will be displayed with the other two downloads, if you need it.
There are other benefits of having Pro, but for most, XP Mode seems to be the main reason.
I hope that my post is of help to you, it's unfortunate, but some older programs just doesn't work with Windows 7, without virtualization. It's something to think about, it's not everyone's cup of tea.
Cat