xp pro to xp home fun

-xp home
Sp 3
256 RAM
1.8CPU
firewall off
x.x.168.100
Workgroup=workgroup
printer & file sharing=on
-xp Pro
Sp 3
4gb RAM
2.7 x2 CPU
firewall off
x.x.168.101
Workgroup=workgroup
printer & file sharing=on

from the XP home machine i can ping the xp pro machine. i cannot ping the home machine from the pro machine.

I want to connect to XP home via real VNC. I also want to copy files to a shared folder on xp home. I just cant seem to find this machine on my workgroup.

any ideas?

Thank you