I´m not sure but I just burned a disk of Photoshop to install in my other computer... and apparently it works... I say apparently as I downloaded a newer version but used the presets of my older one... so far so good...

I´m not sure if I can email it... perhaps it´s too big of a file... or I an let you know where I got the newer version... it´s the CS4

I also have the CS2 and Paint shop Pro I guess 9