====== I have successfully created and connected to IPCOP via a VPN but I can not access any services/computers at the remote location. What’s wrong? ======

For a VPN to work correctly, both sides of the VPN must have DIFFERENT subnets. Please check that you have non-overlapping subnets. If your subnets overlap, then change one of them. Also, avoid using
    * 192.168.0.x/24
    * 192.168.1.x/24
    * 10.0.x.x/16

as these are commonly used at hot spots.