Excuse the dumb question, but: I need to upgrade InDesign and other suite products from CS2 to CS3 versions (MAC) in order to be in line our home office. At the same time, I work with outside designers who, for whatever reason, are unable to upgrade at this time. With PageMaker, Quark, etc. it was possible to have multiple versions of the same program loaded and accessible...is that possible with InDesign...and what do I need to do during install to make it so? Thanks, in advance, for any help. (We recently lost our only Mac tech support person, so I'm winging it here!)