After i get VPN conected i cant reach the file server

Hi to everyone
i`m from chile.. sorry my bad english!!

my problem is that i can conect to the windows 2003 VPN server trougth the cisco pix. I`v get the 1723 and Gre47 ports done and a can reach the VPN server pinging on it. Actually i can take remote control of the server. BUT I can not reach the file server… and i do not know what i`m doing wrong!!

please give some help!!