If these machines are behind a router/firewall, then just give the "Everyone" permission to the Shares on the 2K machine set to modify.  This alomst soundsl like the problem 2K machine have with XP machine, but in reverse in which case a firewall is usually the issue.

nine2lou,

This MSKB article may be helpful also.

Thanks enabling the guest account did it

this isnt an answer, but what p2p service do you use?
cuz i kinda wanna use one

Message Edited by downtownjelly on 04-23-200606:29 PM

An internal P2P service?  It's called a LAN.