Jason: Ok, it seems that you can't make an outgoing connection on port 25010. Just to be sure, could you also try visiting this page:
http://portquiz.positon.org:25010/
If I am correct, and the port is blocked, you shouldn't be able to visit that page and you will get some kind of error message. Otherwise, you will get a page where the 3rd line says:
"You have reached this page on port 25010."
You must be able to make an outgoing TCP connection on port 25010 in order to connect with any of the live control interfaces (including the chat interface). We have it on the development list to build a firewall workaround to cater for people in your situation. Unfortunately that will still take some time to complete.
In the meantime, the only thing you can do is ask a network administrator at your workplace to remove the block. There is probably a workaround you can build yourself to get past the firewall. However it would be quite complicated and would probably need another server outside your work network to do some address translation.