Neither of the servers will work.
I'll try to figure out how I can check my router to see if port 6121 is open, and check my firewall.
In the meantime, Villy's server simply rejects my connection, and Darkkiller's server doesn't do anything. Like, it gives me no indication that it's trying to connect. I'll see if I just have to wait longer or something.
Did I mention I'm running Vista Home Premium?