Tapatalk is being removed immediately. There are security issues and there is no justification for having it anymore. I apolgize to those die-hard Tapatalk users but you'll need to start using the forums mobile version instead.
All new accounts are activated manually by the Admins. After you have registered on the forum send an email to firstname.lastname@example.org and let us know you've registered. You'll usually be activated within a few hours of sending your email.