Just be careful, after submitting the top score (12400 $, I don't know if it is related or not) the alert telling me I had submitted looped (I clicked OK, and the alert would pop up again). Maybe you're missing some "Trigger once while true" condition somewhere. Tested in firefox 6.0.2.
Thanks Kyatric, not sure why it would do that but I'll look into it. The event should only get called each time the post score button is clicked. At any rate, it looks like the score got submitted once only.
A bunch of other things I want to improve upon but C2 has met my expectations so far.