Yes, I saw that. I figured you place your bets on the game such as the following:
Bruins v Panthers Dec 29, 2004 23:59
Game Total OVER 4.5 1.85
Game Total UNDER 4.5 1.85
Tie 5.25
Bruins To Win 2.25
Panthers To Win 2.25
then Intertops will tell you if you won!
For more information you will have to talk to the book.
Edit. BTW, I think you play with real not virtual money.