Windows Xp can't browse Workgrpoup

Help! Unable to browse WorkGroup When Using Xp!
ok, I have a linksys router, with a four port built in switch, I have three computers hooked up to the network, My server, wish is running windows 2000 pro, and my gamer computer, windows xp pro, and my laptop windows xp pro.

I am both fileshareing and sharing a printer on my server.

I use the workgroup, WORKGROUP, have all the computers using it.

I set up the xp computer up by using network setup wizard and used this computer connect to the internet through another computer on my network or through a residential gateway (my router)

I set up a user G0d on my windows 2000 pro server for the xp computers to use, with admin rights.

Call computers can access the net, and if I do map drive, and logon with another use, put in G0d and put in the perfect network path \\win2k\C or whatever it will map.

But I can not browse the network, when I try to expand WORKGROUP I get an error no rights.

Here is a pic of it

http://r0ger.homedns.org:90/Files/Pictures/Computer Examples/cannotbrowse.JPG

and when I try to connect to the shared printer I have on my windows 2000 pro server I see nothing, and I can't browse.

It shows it on the windows 2000 pro server.

Please help.

Thanks