[Samba] can't share directories on clients

[agenteo]

hi,
I'm using samba 3 on debian stable as a PDC.
Two clients, w98 and w2kp. Thoose clients are successfully authenticated
by the samba PDC and they see the server's shares and user's home.
When I left click on a local client directory I don't have the share
voice... so I can't find a way to share it between domain members! Is it
possible to share a directory as in workgroup in a domain?
Thanks in advance,
Enrico