Networking 2 XP + 1 MCE comp

Sup guys and gals. I have 3 computers.
2 are running XP PRO
1 is running XP MCE (media center edition)

Cable internet connected via linksys router.
Ok so the XP computers both see each other and have internet.
The problem is that they cant see the MCE computer, and the MCE isnt working at all. (not seeing either XP or has access to the net)

Im not a total newb so heres what Ive tried.
Checked connections, hardware, pinged via compuer name, put in gateway ip, went to microsoft support site... nothing has helped.

Turned to other boards, and now to you. Please help.
Thanks!

 

anyone?????

 

Can you give the IPs of the computers? (On each computer goto DOS Prompt & type IPCONFIG /ALL). Report back the results individually.

 

heres the family computer..


im busy and will do the other ones later. thank you