I already have a domain registered through another registrar. Can I use it with your hosting?

Yes.  You will need to log in to your registrar account and update the Name Server settings to match our servers.  When you sign up for a hosting account with us, we will provide you with these settings.  If you would like us to make the update to your existing registrar account for you, we will need to have the user name and password for your existing registrar account.