I recently purchased XBOX 360 and I am new to its use. I never had used XBOX 360 before. I purchased Alan Wake limited edition game for my XBOX 360. In its manual, it was mentioned that this game consists some free material which includes some bonus pictures and themes available for free on XBOX market for users with limited edition of the game. I accessed XBOX market and found the free stuff, but I am unable to get it. How do I get the free stuff?