Trying to install Illustrator cs2

I had originally installed the 30-day trial version of Illustrator CS2 from the Adobe.com site. Now that trial has expired, and I'm trying to install the whole Creative Suite onto my computer. It will let me install all other programs on the creative suite EXCEPT Illustrator CS2 saying it has already been installed on my system. I have tried trashing the application, emptying the trash, even adzapping the Illustrator cs2 trial version, but nothing works. How can I get rid of it even though it's expired, and install a proper version of Illustrator???!!! Help! Thanks!