I'm not sure how it work exactly, but I doubt that you need the server files (these are for the dedicated servers only).
I think that all you need to do is open the hamachi network and then load up FH2 and go Multiplayer->Local Server. Put in the maps and paramters you want and then hit the load server (or play) button. Other people on the network will then be able to join by connecting directly to your IP as shown by hamachi.