web server

i recently joined a server 2003 to my existing sbs 2003 domain as member server to eventually act as my web server..

my sbs 2003 has 2 nics 1 connected to the router, 1 to the internal network,

i added application role to the server 2003

how do i configure my server 2003 to be able to resolve my website since it is not connected directly to the router but to the internal network

thanks