Incorrect Version of True Basic

I have recently purchased the True Basic Bronze software. However, after attempting to run BronzeSetup.exe on Windows Vists, I get a message saying "This version of this file is not compatible with the version of windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher." Is there anything I can do? Or do I have to get a different version? Any help would be much appreciatied.