Windows 98/router/internet

Heya all, I have some problems with my network. I have
WinXp and the network/internet is ok, thats not hard to
set up with the router, all work. But with my other
computer on Windows98 i can't set up it, he don't want to
see the router, I don't know why, I checked some
configuration on the net but all don't work.. if someone
are crack with network/router with windows 98, please can
you help me.

Thank you!