Team Group and TechPowerUp Present Online Expo Giveaway

[MKRonin]

Once I entered the contest successfully, it sends me to the screen for additional tickets (facebook, twitter, email). So I click on the email link, send the email to a buddy, no problem. Now I can't get back to the screen to claim the facebook and twitter tickets (it says "you have already entered" when I click the back button). What gives?