Controlling ports in IIS 3 Management Co

I am trying to give users passing through the Proxy 1 server(not using MSPCNT)access to titles such as AOL IM, irc, Icq, MS chat, and RealPlayer content. Even though the permisions are set to allow users and the groups they belong to are set to each protocol. The above programs cannot find a route to host. Any information or examples woud be appreciated.