ketto

It is very easy to setup on Ubuntu systems.

sudo aptitude install tor  
sudo gedit /etc/privoxy/config
comment out: “#logfile logfile” and “#jarfile jarfile”
listen-address 127.0.0.1:8118
forward-socks4a / 127.0.0.1:9050 . (including the period)
sudo /etc/init.d/tor restart && sudo /etc/init.d/privoxy restart
configure your network to now use Tor and Privoxy.
Now it's ready to work.

Firefox Setup / Global Network Proxy Settings:

Edit > Preferences > Advanced > “Connection”
HTTP and SSL Proxy: 127.0.0.1: 8118
SOCKS Host: 127.0.0.1:9050
Or download the Torbutton. It allows you to turn on / off the Tor proxy with a click of a button.

For gaim:

Edit any account (Jabber, MSN, etc)
“Advanced” Tab or “Proxy Settings” (depending on your version of gaim)
Proxy Type: SOCKS 5
Host: 127.0.0.1
Port: 9050
Done
For IRC (freenode) over gaim:

Edit your IRC account settings
change “irc.freenode.net” to: mejokbp2brhw4omd.onion
“Advanced” Tab or “Proxy Settings” (depending on your version of gaim)
Proxy Type: SOCKS 5
Host: 127.0.0.1
Port: 9050