Alright, I've had Assassin's Creed II for a while now, and the other day I decided to try and give the extra content a go. (seeing asthough I got the White Edition)
I entered the code and everything, but when I try and continue to the actual downloading, a message pops up saying that my code was invalid.
I try a number of times, until I finally realise that the code has one less digit than a normal code does.
I checked with my friends, and they all had the same problem.
Could anyone point me in the right direction and enlighten me as to what's going on?

No idea,the internet for my brother's Xbox LIVE hasn't been hooked up yet so I haven't been able to get my extra content. :(

Are you using the normal redeem code thing in the guide? To use the code you have to use an option within the game menu instead, I thought the code looked a bit funny too.

Oh thanks so much.
I was really worried that mine had been bodged or something.