When you register for an account on out website, you receive an email to verify that you own the email address. You should have received the email at the time you registered. If not, check your junk and spam folders as it sometimes lands there. Once you get the email, you'll click the link to confirm your account and you'll be up and running.
If you are having trouble at any point in this process, please click "Submit a Ticket" in the upper right of the screen and submit a support request.