ViperTec? Short rascal, 32" ATA? They didn't make that bow in '06.....I'm pretty sure the last year for that one was '05.....
If it really is brand new, you got a good deal. That bow sold for over 6 bills brand new.....
www.hoyt.com
It won't be listed there though.....You could email them, and they could tell you when it was produced. They are awesome bows....