I have the same problem. The college firewall blocks all but a few ports.

You might ask the IT people if it's possible to open up the right one but I dodn't have much look with that.

The other possibility is using a http tunnel or a shell account. One of the societies here has a college approved ssh server (or something like that, I'm not sure) that I'm trying to figure out how to use MTW through. Maybe your college has something like that?