In IE, if you are delegating on click and submit on the same element, the 2nd event will never be fired b/c liveFired is set.  Somehow liveFired needs to be reset for different types of events.

I can/will submit test cases when I have time.  But this is a pretty serious problem with IE / event delegation.  If I get a fix before the community, I will make a pull request.

Also, for performance, the liveFired check should probably go before the jQuery.data call.