I agree with Jan.... check out books! I know that i have seen, or maybe even possibly own a book about this topic. If I can ever tear myself away from this computer I am supposed to be doing a major clean up/clean out day here. If I come across the book that I am thinking about, I will let you know! I will even send it to you... because t his is a project way out of my capabilities!! Good for you for trying it... what a great idea. I do know that if you can put a copy of the picture into something like Picasa, you can turn it into a black and white line drawing... and then maybe if you enlarge that it would give you a starting point.