A couple of my friends and I dug out our copies of WWP and decided to try playing it over hamachi. We all reinstalled and joined the same hamachi server but none of us could see anyone else in the LAN lobby. Also noone could see any games made by anyone else. Any ideas why?

On your LAN configuration menu in the game, the host should put his Hamachi IP on the proxy blank and tick "force ip" box.

Alternatively, you guys could try typing the host's hamachi IP on the box at the bottom of the mutliplayer menu in the game and press on the connect button.