Love this hack!
Only problem I've had so far, and we just had it today after having the arcade for man, like 6 months with no problems at all
Had a user that couldn't submit a score at all on ANY game. When he went to submit a score it would just direct him to the arcade home page, instead of the page where he can enter a comment.
It ended up the user had not been updating his Internet Explorer at all...
He downloaded service pack 1 for it and installed it, and the problem was fixed.
Thanks for the hack John, definately one of the best community builders on my site