I already completed the register for my nameservers with my registrar. First of all, I added the record A from dns1/2.mydomain.com in their file zone and directed it to my servermatrix server(Super Server 2.'s IP. And then the dns1/2.mydomain.com was registered as DNS SERVER.

If the above process is correct, can i set my domain:demo.com's DNS like dns1/2.mydomain.com with registrar in a few days？

How can i set the dns server in windows2003 to make it work properly for these domains ?

I really appreciate if someone can show me the details step by step.