After you registered go on your account page and click on the “Contest” button. Then you will be redirected to your contest page. There you’ll find instructions for the contest including the download link. This is also where you can submit your composition and find the results after the competition ends. You can also just click on this link (https://indiegamemusiccontest.com/submission/) but be aware that if you’re not logged in and haven’t registered already you’ll be redirected to the registration page.