How to create a two gateways on XP, with 3 network interfaces

The problem is as follows. There superserver) for Windows XP, with three network cards, with ip-address:

1) the gateway 192.168.141.10 192.168.141.200 - looking to the Internet via ADSL;

2) the gateway 192.168.141.20 192.168.141.10 - LAN, Internet guide above, ie, This proxy server with the appropriate software;

3) gateway 192.168.131.1 192.168.131.2, looking to the VPN, subnet mask everywhere 255.255.255.0, (/ 24).

With the help of a proxy server could not manage to wrap traffic to a specific ip VPNa, ie with 192.168.141.20 through 192.168.131.2.