I'm not sure if this still works, but at least earlier this year Adobe shut down the activation servers for CS2 and you could install free and mostly-legitimately.Ah, okay. I was just a little confused about the almost cartoonish shading on the auroras. I wish I had a working photoshop.
http://gizmodo.com/5973730/grab-photoshop-and-cs2-for-absolutely-free-right-here