How can I set up my uniform server as an http proxy server?

 

I tried following directions from here: http://center.uniformserver.com/multi_serv..._rev_proxy.html

 

I can connect to my uniform server from the internet.

 

The proxy appears to be all set up, but when I change my browser to use my dyndns name as a proxy, it can't connect. I'm not sure where to go from here.

 

My ultimate goal is to http tunnel through a firewall to my home computer, which will be a proxy server out to the internet.

Modem or Firewall?