University VPN Problem - Please Help

OK. Ill try my best to explain the set-up and problem here.

I recently did a networking installation at a student house. Rigged it with an 8-port swith and Cat5e to connect the 6 PC's in the house. The LAN runs perfectly. Now, the university offers a wireless service where a student with wireless can access the university intranet and using a program called inetkey, can access the internet.

So, i set up one desktop with a wireless card and an external antenna to act as a server. All's good and to logon to the wireless service you dial into a VPN. Everything works perfectly. Now the problem is is that i cant get the other PC's on the LAN to access/share/tunnel/whatever the VPN as a shared connection to allow them all access to it[/img].

Anyone with any ideas, please help.


P.S I did the whole XP setting up a home network, share this connection and all that and hasnt helped.