I have no idea what ports are open. I basically have to try something to see if it works or not. It wouldn't surprise me if most ports are blocked since my company is very anal about security (they wanted to take away everyones email at one point).

When I try to connect to chat it can't find the server. There's no telling if it'll get better or not. Our network person just quit in disgust last friday so things are even more screwed up than normal.