Three toeds have the most widely diverse colorations of any north american box turtle. Also, they do not always have three toes, and easterns and gulf coast box turtles often have three toes instead of four, so this is not necessarily a good way to ID them.
Email one of us a photo and we can ID your turtle in seconds. If you can, post it on the web somewhere and use the url of the image to post it into a thread, or post a link.
You can see some photos of my turtles at:
http://www.aileo.com/PhotoAlbum.cfm?vMember=1&vAlbum=102
and there are other albums there in the menu, also try:
http://www.aileo.com/aileona/