Change the Nameservers of your domain: 

1. login to your client area at https://secure.hostmight.com/clientarea.php to manage your new domain.
2. Once you logged in, click on Domains -> My Domains
3. After that, click on Manage Domain button against your domain name for which you want to change the nameservers.
4. Click on the Nameservers tab, apply the nameservers which you want to set for your domain > Click on Change Nameservers to apply the changes