Join Network Game Problem

[personaljesus]

I've been trying to play FM2011 with some people from a forum lately. So I downloaded Hamachi, got into their channel or whatevs (dunno what it called) anyways, I opened the game. I clicked on "Join Other Server" and typed the IP of the guy who started the room. for everybody else, when they clicked on the button that said ok, it asked for a password. for me, when i click on it it automatically closes that box.

i tried everything, restarted hamachi, restarted the game; what is the problem?