Peer-to-Peer Home Networking

I have a small "peer-to-peer" home network which connected
two computers using Windows 98 as their operating systems.
The computers are both connected to a D-Link DE-809 TC
hub. Both computers recognize each other and I can
transfer files between them with no problems.

I have just connected a third computer, using Windows ME as
the operating system, to the hub and ran the "Home Network
Wizard" thinking this would connect the third computer to
the network.

At present, the Windows ME computer can "see" only one of
the Windows 98 computers but neither of the Windows 98
computers recognize the Windows ME computer.

I've tried to use the Help features on the computers to
find out how to correct this situation but so far have not
been able to solve the problem.

Can anyone tell me how to get all three computers to "see"
each other?

Thanks,
Jon MacIvor