Please refer to GoDaddy support document for latest instructions: http://support.godaddy.com/help/article/664/setting-nameservers-for-your-domain-names#custom
To Set Custom Nameservers for a Domain Name Registered with GoDaddy:
- Log in to your Account Manager.
- Next to Domains, click Launch.
- Select the domain name(s) you want to modify.
- From the Nameservers menu, select Set Nameservers.
- Under Setup type, select Custom.
- Select Add Nameservers.
- Enter the nameservers:
ns1.wsigenesis.com
ns2.wsigenesis.com - Click Save.