Install PS 6 BEFORE Illustrator 9 or AFTER?

I'm recovering from a C drive failure and must install PS 6 and Ill 9 on the new drive. I seem to recall from three years ago when I first installed these apps that there was some issue about installing one or the other first.

Does anyone know what I'm talking about?

Thanks in advance for your help.

Katherine

PS 6 then it's updates... then Illy 9, then it's updates. (earliest program first).

Thanks much, Dave.....K