A friend sent me this link. Basically, go to Adobe's download website and download it. That's all there is to it.
I think the most current version is CS6, so CS2 is a bit outdated, but I think it's still a very good software.
Link to FREE Adobe CS2 download:
CS2 SYSTEM REQUIREMENTS
Mac OS X v.10.2.8–v.10.3.8. PowerPC® G4 or G5 processor
Microsoft® Windows® 2000/Windows XP. Intel® Pentium® III or 4 processor
Here are all the DIRECT links: