okay you have moved through the trial "you love it"... how do you go live?
how do you get rid of the .onmicrosoft.com to "ITS ALIVE, ITS ALIVE?
Verification Instructions for Specific Domain Registrars
Microsoft Online Services has instructions for verifying domains at some frequently used domain registrars. Review the following list to see if it includes instructions for your domain registrar. New registrars are added at regular intervals.