First click on the image and sign up! Alternatively you can Sign Up Here as well.
After you sign up, try out the site for a bit. Get used to things, make sure you're comfortable with how things work.
Once you're settled in you can complete registration! Remember that only one account is allowed per household.
Finally you can complete interesting offers and turn in your earnings for that Ultimate Game Card. The code will be e-mailed to you within a few hours.