Older versions of AOL Instant Messenger (AIM) do
not support HTTP Proxy. Before you continue with the instructions
below, please download the latest AIM version. Please click here to download a supported version of AIM.
NOTE: Installing a new version
of AIM WILL NOT delete your Buddy Lists. Upgrades normally add new features.
Click on Setup at the Login Screen
From Sign On/Off menu, Click on Connection.
Check "Connect using proxy" and enter the number as display on the image. Make sure you check HTTP under Protocol.