Tried multiplayer using hamachi with a friend but when we try to join each others games it just doesnt connect, no other error besides that. Was using the 1.05 version that came with gog then we both tried the 1.07 and it didnt make a difference.

Try GameRanger - http://www.gameranger.com

To play in GameRanger must install Patch for CFW [for play in Game Ranger] http://www.moddb.com/mods/conquest-2-frontier-wars-forever.