Since the colored sections started way back when, many people have asked how to color, what techniques to use, etc., and I'd put in my help, as well as other people, and it would get buried after a while. So I asked Laura if she'd sticky a how-to thread near the top so it'd be readilly accessable for people who would like to learn.
I went back to the first colored thread and took all the info I found there that would be of help and I'll put it here. I didn't really look too intensely at it because I need to get to work soon, but when I have the time, I'll comb it over again, as well as search the other colored photos threads for relevent information. Thanks Laura for making this a sticky!