>>>>
>>
>>If the Server has static IP, you can use this site http://www.whatismyip.com/ to find the IP of it.
>
>When I run this URL on my PC I get message "Service Unavailable"

Strange, worked fine for me... There are any other ways to find the IP of the server.

Actually, I understand now. Sure, you don't have IE (or other browsers) installed on the server. That was dumb of me.

Try running ipconfig in the cmd window.