All you have to do is
1. Sign up for an account on Polyvore.com
2. Join the ROCKWORLD on Polyvore group
3. Enter the Contest
Here are the sets from the ROCKWORLDEAST profile, you can click the arrows to scroll through:
Here are the contest entries, remember you can enter as many times as you like, there is no limit:
Polyvore is a social site that allows users to create sets about fashion, art and interior design. Basically, it's an awesome site where you get to make collages of all your favorite clothing, accessories, people and things from around the internet and show it to your friends and internet friends.... And there's a ton of contests with awesome prizes all the time!
Have fun and Good Luck!