Internet Explorer proxy configuration

1. Go to Tools -> Internet Options in your Internet Explorer menu.
   
2. Go to Connections tab and click LAN Settings.
   
3. Under Proxy server, click to select the Use a proxy server for your LAN check box and click Advanced button.
   
4. In the HTTP Address box, type in any IP address from the list in your proxybonanza.com account. Your proxy list format is: proxyIP:proxyPort so set the port to what you see after the ‘:’ for particular IP address (for example: 22.33.44.55:1274 – 23.33.44.55 is the proxy IP and proxy port is 1274). Tick the ‘Use the same proxy server for all protocols‘ checkbox, click Ok and you’re ready to go! Internet Explorer will prompt you for login and password when you open your first website with new settings – use your proxybonanza.com login and password.
   

Source: http://blog.proxybonanza.com/web-browsers/ie-proxy-configuration/