90awdturbo 0 Newbie Poster

After reinstalling Windows XP Pro 32 bit and all the updates I am no longer able to open Catalyst, it gives me this error http://techstuph.com/2009/01/solution-cant-open-catalyst-control-center-cccexe/. I've tried everything on that page but with no avail. I'm running an MSI Neo2 p35 FR along with an HD 4850 with 4 gigs of 1066. Before the windows reinstall everything was working perfect? Any suggestions would be greatly appreciated, thanks in advance.