Once you've registered a 'Domain Name' with GoDaddy
or with another registrar you need to change your domain's nameservers.
To do this, go to the company you registered your Domain Name with enter these 2 name servers to your domain name:
Nameserver 1: NS1.ADMIN3000.COM
Nameserver 2: NS2.ADMIN3000.COM
You can call GoDaddy to get help doing this at 1 (866) 938-1119, or go to "Manage Domains" and click on your domain name to change the nameserver.