as i posted elsewhere - the failure may be because you are running a modified browser agent to get full versoin of facebook? That was my case, and I know it messed up Ovi store - so, I reset the agent to stock, retried the registration via settings/myNokia and it worked OK.

@xmob - if you weren't asked, did you flash the 1.2? I updated OTA, and I got a full screen blurb with a dialogue asking me to confirm Nokia's T's & C's before proceeding with the registration.