No idea how to fix it.
I would gt on the phone and call a store tomorrow and ask. I've always had better responses from them than the 1-800 number, or the silly online thing. If you have a store nearby, just drop in. They'll be glad to help, and can point you in th right direction if they can't.
Hope your NOOK friend issue was fixed. I've had problems because I changed emails after initially registering the NT. At least re: help so far, you cannot change the email on your actual NOOK device, without deregistering (losing everything) and re-registering. This is clearly not an option!