connectivity

Try the following link

http://info.connect.com.au/docs/dialing_in/ICS/ics_xp.html

When they talk about the server on the LAN they mean your Windows 2000 computer. The clients are the Windows 98 computers.

Windows XP has ICS,and should be the Host computer,Windows 98 will be the client

Install ICS on the host and create a startupdisk when prompted,usethe startup disk on the client computer to setup ICS

REF
http://support.microsoft.com/
www.zdnet.com