Code isn't valid on my copy either, but I was able to receive my moogle cap and sieth doll in the mail when I was finally able to log in (I hate error 1017 and 3102 btw). Given with my registration code, I'm not sure if it's a D or an O when I type it in... it would be lovely if we used proper fonts when handing out codes...
two steps forward one step back I suppose.