5punk

I can't use Xfire at work anymore since we have changed to a new firewall, and I've spent most of the day trying to get it to work.

Buggery bollocks indeed!

have you tried tunneling through? are you allowed/can/will anyway
to install applications on your work machine?
Set up a simple proxy server and pass it through standard port that is allowed and connect it to a proxy server on your desktop at home or something like that if i remember rightly.
I had some limited wins of doing this at uni. Its no good for downloading, but should work for IM.

/ninja
http://www.nocrew.org/software/httptunnel.html

Ask whoever configures the firewall to open TCP port 25999 to cs.xfire.com - say it's for really important work-related stuff like letting your mates know what games you are playing.

Or what Prof said.

Thankyou people, I shall give it a go

*wanders off to read some more CISCO books*