My DH and I went in August (2004). We bought the tickets at home before we left. We had front row seats. It was so much fun. The way they were picking people when we went was along the lines of the "fastest finger". They would show an item on a screen and tell you what year they were looking for the price and pop up 3 or 4 answers and the 4 fastest people who were correct got picked. They would picke 4 new people for each round. The games on the stage were just like the ones on t.v. (the ones I remember were "hole in one or two", then the one where you have to price each item).
Oh, and everyone in the audience gets a name tag (just like on the real show). And at the end the MC and the Ladies were signing autographs. When we were there the MC was a guy from a soap opera - sorry I can't remember which one, but he was easy on the eyes!).
I hope you have a Happy Birthday!