I just noticed that. My other computer is an old Mac G4. I'll have to download the Mac version as well and see if it will run on that box.
I have the original CS Mac version # 8.0x117 which runs under OSX 10.68. Some glitches with the more esoteric parts, but everything else works as it used to on my old PPC box. CS2 might work the same, despite claims to the contrary - try it.