Win 98 and XP ICS

Hello,
I have three computers on my network.
1. XP Home with dial up modem and ICS.
2. XP Pro that properly connects to ICS on XP Home.
3. Win 98 that will not connect to ICS on XP Home. File sharing works. The
XP disk was used to setup the proper files to receive ICS. Under Internet
Options, there was a connection setup that connects through a LAN. Should I
select the automatic proxy setting for this? I've tried both selecting the
auto proxy and leaving this selection blank. Anyways, I can get an Internet
Gateway window to display on the 98. This shows the connected modem on XP
Home. On this window, it shows modem activity on the XP Home, but is not
connecting to the Win 98 computer. How can I get the final connection so my
browser will work?
Thanks!
Ed M.