What was the page you saw after clicking sth like "Yes, i want to get this stuff by Sprakfun Free Day"? I was able to get only to that moment and the next site (after a milion of "refresh") is just blank... Do you know anything about it?
The page went blank for me too after pressing "yes, I want free stuff..." but refreshing that blank page 10-20 times got me to a "congratulations" page with a SparkFun guy wearing a crown and an order email in my inbox (though my order total, which was well over $100, didn't reflect the $100 off I'm assuming it came through...but I saved the congrats page just to be sure).