Vista and XP Networking

i followed the steps on
http://www.microsoft.com/technet/net.../vista_fp.mspx so that i can
make my vista laptop appearable to my xp desktop. both computers are on the
same workgroup name and i can see my vista on the desktop but when i click on
it, it says permission denied and no such network path even though i have it
that everything is turn on under the sharing and discovery option for the
vista. and on my vista, i cant see to locate my xp. both are connected to a
router via an ethernet cable. can someone tell me what im doing wrong. i read
few of the threads but nothing is helping. i just want to take files such as
music off my xp and put them on my vista.