Topic: vpn problem

[iostrym]

hello everybody. first, excuse me for my poor level in english.
I use a sme server 6.0.1 at home that is the server of a pc using windows XP SP1. I want to allow someone who have window XP SP2 to connect to my network, so I use the PPTP connection.
On the server manager, I allow him to do that and he make a new connection that he configure as seen in this document : http://www.domain-logic.com/support/secure_tunnel_XP.htm

So we did and he succed to be connected, he has got an IP given by my sme server (192.168.82.250) and we succed when we ping each other ! He has also his internet connection. We see each other with net use. BUT WE CANT see our shared document because we don't have "autorization" :-/ Our firewall were disabled !! even the XP firewall
It's also impossible for us to play game using a lan (total war, battle for middle earth) becaue we don't see each other !

I don't understand at all, please help ! os anybody has alreday such a thing ?

thank you in advance !