This might be a help,

http://www.dslwebserver.com/main/fr_...ip-win-xp.html


i forget to say,

for da default gateway, subnet mask, and DNS Servers, u can get it by typing "ipconfing /all" in command line at the main computer/your server that connect to the internet.

IP address should be assign with only changing the last number XXXX.XXXX.XXXX.Number

good luck!