My network consists of a mix of WinXP, Win2K, & Win98 computers. There
is no central server. All machines but two connect to a main Linksys
router (BEFSR11) with an internal IP address of 192.168.1.1. DHCP is
enabled on this router starting at 192.168.1.100. All the machines
connected to this router can see each other and share files, no
problem.

I also have a Linksys wireless G router (WRT54G) connected to the main
router, with two computers connected to it (one wirelessly, one via
Ethernet cable). These two computers cannot see the rest of the
network.

I've tried nearly every combination I can think of with these two
routers, and I simply cannot get the wireless portion of the network to
see the rest of the network, and vice versa. Help!

BlueJ
(E-Mail Removed)

2 routers = 2 seperate networks. if you plug a cable from one the ports
on the BEFSR11 to one of the ports on the wireless that is not the
uplink, they should be in the same network.

Your G router on the same subnet?
Is your G router WAN port connected to anything?
What port (G) did u use for router-to-router?
Are u running NAT on the G router?
Are your WiFi devices being DHCP'ed, by which box?
What subnet mask are using? same everywhre?