OK, I know this is going to sound like such a lame question, but I really need some help.

For some reason, it won't let me contibute my work! It says that my screenshot is always messed up. One area says it needs to be full screen, the other sas 500x500, and when I submit, it says it can't be in full screen OR cropped!!!

HELP ME WITH THIS DUMB SCREEN CROP THING!!!! I'm so confused

According to other people and posts etc it might be your cookies? Like internet cookies? Did you try putting in a full screen, no editied screenshot?

Moved to feedback..

Make sure you're taking the screenshot in fullscreen mode in 1024 by 768 resolution.