Jim, here is what I would do. I would get a screen capture of the stolen images. I would send a bill to the thief for the use of those images. I would make the price high and then let them know that you are willing to negotiate. then I would immmediately register those photos with the Library of Congress and I mean all forms of the images (with & without signs).

If they do not negotiate with you, then I would send them a letter explaining that you will take them to small claims court for 3 times the high price that you offered in your letter. I would also inform them that you will notify their ISP about using stolen photos on their web site. Notify their ISP and they will boot them off the internet. Be sure that you send copies of the web page capture with the stolen photos.

Jim, you and I are both nice guys and neither of us wants to do something like this, but this kind of stuff is happening way to much and our future to make a living depends on how we treat the thieves and I say start off being nice and then get tough and see it through. Remember, you are not the criminal, they are.

Good luck and I am truly sorry this has happened to you.

PS, even when you get tough, still be nice.