http://www.360voice.com/join/5U3487JP
Click the link
Sign up if you haven't already
Verify your e-mail address
Re-click the link
Go to the bottom, and join the challenge
The challenge will last for 30 days. Person with the most GAINED gamerscore at the end of the 30 days will win the $100 Bestbuy card.
Click the link
Sign up if you haven't already
Verify your e-mail address
Re-click the link
Go to the bottom, and join the challenge
The challenge will last for 30 days. Person with the most GAINED gamerscore at the end of the 30 days will win the $100 Bestbuy card.