I have a number of 32 bit applications on my Windows 7 Ultimate 64 bit OS. I don't have any problems.
What is the exact error message? And have you tried the Windows 7 Compatibility Wizard?
Type Compatibility into the Start Menu search box and click the first, (only for me), entry in the list.
Mark
I had Ulead Photoimpact 4.2 and could open 2 images at the same time, then clone image from one picture to the other. Windows 7 won't load 32 bit programs. Is there windows 7 compatible software that will do picture to picture cloning?

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