Hi Jennie,
To my recollection you'll get in a LONG line just to show your receipt and they give you a name badge that you have to be wearing in order to get into the various areas of the Fest, i.e., the infamous Dealer's Room, where a fan can go broke quickly, the ballroom where the Q&A sessions are held, etc. You come and go as you please all the livelong day. I can't quite recall how they give out the tickets for the banquet, I think there's a line just to get the tickets on Sunday, but I may be mistaken. I haven't been to a dinner since '99.
I'm happy for you to be experiencing your first Fest, it really is a blast.
John