Illustartor CS 2 has some quircky bugs with or without shapeshifter. The first one you'll notice is it does not consistently honor the graphite appearance -- some parts of the apps interface will be blue and some graphite. Photoshop CS 2 will be the same, but usually just the apple icon in the menu bar misbehaves.

It looks like adobe needs to do a quick update for tiger compatibility as across different computers, Photoshop CS2 always, w/o fail, crashes on 1st launch after restart or waking from sleep.

Adding a gui mod adds new bugs.