My employer also blocks FT

I have been using webwarper.net as a pass-thru proxy for a while. Then, when webwarper was included in the black list, I noticed, that if I use IP address nstead of domain name, it works

You can try this...
http://64.203.129.94/ww/~GZ/www.flyertalk.com/?*

I recommend to install a popup blocker (Google Toolbar is cool). You also might get 2 or 3 message boxes displayed from time to time, but hey, you get access to FT