File Association Problems

I knew not where to post this, but this seems most qualified
It happens that I now have Photoshop CS3, installed above my old CS2. However, after I installed it, my PNG-files where still auto-opened by CS2... I uninstalled it but now I can't find a way to set associations to CS3...
"Open With..." doesn't work as it won't recognize CS3 as a suited program... (it won't appear in the list even after I selected it manually from the program files :S)

Anyone having ideas on how to solve this?

Thanks,
Duck

 

delete cs2 and cs3 first, together with all the folders from program files
and then you install 1 of the two .. don't install both cause it won't recognize wich is cs2 and cs3 so files will open differently, make sure to copy your brushes and gradient,shapes... stuff like that before you delete the folders

best answer i can give you

 

Thanks ...
I'll mess around for a bit longer hoping I get it fixed, otherwise I'm reinstalling CS3 (CS2 already gone )

 

yeah, with most programs you should just delete the old version and then install the newer one. It causes less problems