Hey, I just wanted to add precise information for some people who find it hard to follow:
You go on vmk.com
then you click on the Contact Us link, which is kinda on the bottom of the page.
Then just follow the instructions: Enter date, user name aso.
Then go for Thanksgiving Quest
enter your (hopefully right) answer (I´d go for a muslim math linus...ok thats quite the analogy *lol* wonder if somebody understands it)
And then good luck mate!