If you go under About This Mac which operating system and processor does it list you as using?
Do other CS6 apps run on the system? If not, that would be a clear indication that it may indeed not be supported. anyway, as Jeff said, nobody can be sure until we know the exact type of Mac.
jeff and Mylenium,
Thank you for your help, I did end up figuring out the problem. We had a problem witht he download apparently.
Thank you again,