using Tor proxy from behind a firewall?

[quraid]

Hello folks.
i live in a hostel and have to connect to the net via a proxy.
Lets say my IP is 172.16.ab.cd
the ip of my proxy is 172.16.pq.rs:80.
the only open ports that i know of are 21,25,110,135,139,445 out of which i use 80 for net browsing.
i wish to use Tor (& Privoxy) but don't know how to do it.
i have installed Tor and Privoxy and followed the instructions but am still unable to do it. please help!

regards.

 

[icecoolz]

What eaxctly are you trying to do ? Trying to be anonymous ? IN which case these wont work. Anonymous proxies and related software is for systems which connect to the internet directly. Since you are already behind a proxy the tools wont be able to redirect from your system.