I am not sure about 32 bit Vista, but 64 bit will not run Acrobat 7.0.
To load CS2 on to a Vista 64 bit system you have to change the install place. Go to this site.
http://ntcompatible.com/compatoscat9.htmlClick on; Adobe Creative Suite 2 Premium Edition, run down a couple of inserted messages and it will tell you how to enter the directory.
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I've had no problems with installation nor function with Acrobat or PSCS2 on Vista 64.
Canon camera drivers however......