To find IP address: click Start button, Select Run, in the box that appears type: cmd. This launches another window with a black background(Command Prompt).
At the end of the line that says "C:" type> ipconfig/all (Without any spaces)
This will show all the IP configurations including the IP address
I think ME is the same as 98 for this - from the run box, type winipcfg - you will need to select your network adapter from the list, and it will give you your IP info.
I know Tan's advise is good for NT based windows ( 2000 & XP) but am not sure about 98, ME.