Cant get it to turn over

ahh.. well, hate to say it, but it's back to the future for ya.. only real way to figure out what you did wrong is to go back and figure out what you did wrong.. we can all suggest until our faces turn blue but, there is no way we can know exactly where the issue is - be sure, it's there somewhere.. you'll get it!
oh - do what 67Dart273 suggests - he knows his ****