This belongs in help.
ot:
I know your pain. I can't host from my own connection as it's a really weird setup.
I've ended up hosting using a server in Montreal. I had to go through this stupidly complicated process of installing Ubuntu, getting WINE on it, getting some Remote Desktop software on it so I could see what I was doing, and then finally installing blockland.
It works, but i would really suggest using a hosting service like uh- Blocknet is still around, right?