I am trying to set up a VPN or a LAN between my PC and my Sons' PC so that we can play against each other.

we have each got an original ZH CD with serial numbers

we have tried using Hamachi but cannot see one another in the lobby

we have tried going online and creating a 1vs1 game but we cannot connect to each other even though we can connect to other players

can somebody point us in the right direction please and explain what we are doing wrong and more importantly what we need to do to solve this issue

cheers

frustrated newbie