I need help setting up a .tk domain

I have registered my forum http://bloxforum.createaforum.com too dot.tk I did everything and then clicked verify and it does nothing so I tried update and that said there was a error please help.

Read this guide: http://support.createaforum.com/7/%28%28guide%29%29-free-tk-domain-w-nameservers-%28with-pictures%29/