This has been driving me crazy for about three hours trying to get my camera and stamp to communicate with each other and just while I was about to post a question on how I am supposed to get them to communicate, I figured it out!
I used the tutorial from http://www.generation5.org/content/2004/cambot.asp
and MAKE SURE YOU HAVE THE POWER ADAPTER PLUGGED IN! I couldn't understand what was wrong, because the ttl supplied 5v which made me think the power adapter wasn't needed, but it is. So that is all you do. It turned out to be an insanely easy task and I am feeling very stupid right now. Have fun with your CMUCam2!