All you have to do is visit the site in a browser with javascript enabled. Every day that you visit the site, it's like you're spinning the prize wheel. If you win, you'll see a fairly obnoxious sign-up form which will give you further instructions. If you don't win, you'll see a fairly obnoxious 'communication interrupted' message.
If the javascript is not working, you will see "intercepting quantum communication" on your screen, and will stay there. Be that the case, I strongly recommend you get Firefox, and if you're not allowed to install Firefox at work, well, you probably shouldn't be visiting our site from work anyway.