Ok I will turn on the debugging for your username.  You will see a bunch of text below the display of the module, if you can copy that and send it to me via IM that would be great.  No there aren't any passwords or the like.

UPDATE:  Looks like I am able to reproduce it, now if I can figure out what is going on.  should have something this weekend.

I am not able to register either... I have tried about 5 times, using both FireFox and IE7. The page simply refreshes on the postback and looks like nothing happens...

EDIT: Oops, I just saw your note that you were able to reproduce the issue.... I'll wait patiently for the news that it is working!  :)

Ok, all is fixed.  Seems when I updated the cms system to the latest vesion it put in some values in the module for caching.  When we first ran into this problem I should have remembered this issue from previously, but it was quite some time ago.  Anyway, there shouldn't be any more problems with registration and seat reservation.