Transworld Surf Cheats Problem

[dogtown]

I just got the X-Box for Christmas with the Transworld Surf game too. But I cannot get the cheats to work for Transworld Surf. When I do Back 4 times I get an audio que but when I try any other code I get nothing....?

Any help would be appreciated since I'm a real green horn at using x-box..

Thanks,

Dogtown