Did you read yesterday's post, Christmas Conundrum? If you didn't, and you like puzzles, you should read that first.
As promised, I'm going to be providing a hint, but before I do, I want to congratulate Christer Edvartsen. He was the first person to email me the solution and win the $100 prize from WonderProxy. So far, only one other person has managed to solve the puzzle. Maybe you can be the third?
Without further ado, here's the hint: