In XP there may be a run command under the windows star key, use that, if not there use the search box, click run, Next type IPCONFIG In the cli that pops up write down IP, Mask and gateway. Next count how many computers are using that device including wifi. The info your provider gave you should do rather than IPCONFIG. In Amitcp make the gateway and mask the same as windows along with the first 3 groups of IP numbers. For the last number take your gateway and add the number of computers you have and round up. So lets say there are 3 computers max, make yours either 010 or10 depending on the original number of digits as Gateway. you want to leave a few numbers between the gateway and last number you use to leave room for another auto device. In this example
192.168.1.1, the last of your first 3 computers should be 004,04 or4, so if you leave some room you make it 010 or10. you should be on at that point.
