TIkipress Problem?

Hey

I have tried tikipress with the 3.7.7 , 3.8 and 3.8.1 versions of WP e-commerce. The 3.7.7 does offer a BuddyPress Event tab where you can connect the ticket you create to an event.
I may be blind (and I hope you’ll show me the light!) but I just don’t see this option with the 3.8 or 3.8.1 versions of WP e-commerce.

Also, in these later 2 versions, it is possible to complete a checkout transaction, although it doesn’t accept the emails for the holders of any extra tickets I’ve purchased besides myself. In 3.7.7, however, it won’t let me past this screen at all – I can’t complete the purchase.

Can anyone explain why?

Thanks!