To change the nameservers your domain is currently using, login to your account. Click the Manage Domains link on the member menu. Click the M icon next to the domain name you wish to change nameservers for. Click the 'Change Nameservers' link. Set the drawdown box to 'Custom Nameservers' if you wish to use your hosting provider's nameservers. Enter the nameservers given for your hosting account into the nameserver spaces provided and click the submit button.
If you wish to use our default nameservers, select Default Nameservers in the drawdown box and click the submit button.