This may not be the value it seems to be. These are pretty antique as far as applications go, and might be okay to learn the basics with before getting a "real version," but you're going to have trouble working with industry folk using them. They were originally released in 2005. If you run OS X Lion or later, you'll probably have better luck booting into a Windows VM or using WINE or CrossOver than getting the Mac versions going:

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

They're also not eligible for upgrade pricing to Creative Cloud (CS3+). Most professionals I work with upgrade every couple of versions; I don't know anyone still using even CS4, for example.

Wow: http://en.wikipedia.org/wiki/Adobe_Photoshop#CS2

The Standard Edition included:

    Adobe Bridge (Since CS2)
    Adobe Illustrator
    Adobe InDesign
    Adobe Photoshop  
    Adobe Version Cue
    Design guide and training resources

The Premium Edition also included:

    Adobe Acrobat Professional (Version 8 in CS2.3)
    Adobe Dreamweaver (Since CS2.3)
    Adobe GoLive

Uhm, it requires registration and a known serial number. Were you advocating any particular actions to extrapolate that into "free"?

It gives you a serial if you download.

Site seems down now.

you need to register a adobe account to download.