DNS Server

[Charles]

Hi Guys....hope you don't mind i'm asking a simple question.

Recently i've registered my own internet domain  ie. "askme.com" 

And I want to setup my own DNS servers at my own place with a 24hr lease
line with NT 4.0 so to save paying my ISP monthly fees. So how my DNS
server actually talk to other names servers in other domain that mine
domain "askme.com" actually is at this 203.126.0.... ?

Any kind soul to help me ? : )

Thanks
Charles