I'm a real newbie. Is there a place to see what a correct bite and a bad bite looks like for showing?

THX

here is a good article about teeth, hope this helps.

http://www.dog-health-guide.org/canineteeth.html#NormalCanineTeeth

Here is another website, it is a Rottie site, but has really good illustrations.

http://www.donnerbergrottweilers.com/rottweiler-teeth.html