im have apache up and running no problems at all on a server running Ubuntu server 8.04. ive recently installed an app that checks its version against a file on the internet, aswell as allowing me to download files from thier servers. The problem i am having is that to get onto the internet it needs to go through a proxy server, and i cant find anything about proxy config in apache2.conf

So how do i make apache use a proxy server for any connections to the internet?