Heh heh...NM...found out that the RJ-45 and RJ-11 sockets couldn't be used simultaneously.
Both of my machines have NIC's installed (same model/manufacturer)
I currently run Win98 (the computer the cable modem is attached to) and WinXP Pro (client).
Internet > Cable modem > 5-Port hub > NIC > Primary machine ---> Hub > NIC > Secondary machine
I've used the Internet connection sharing software before with Win98 SE...but it never seemed to work for me.
Looks like I may have to run a proxy on this machine to get a connection to the other. But in the meantime I might have to purchase some more cables to get this going.