Microsft Exchange 5.5 with MS proxy

Dear Friends,

I am facing a problem in configuring Microsft Exchange server 5.5 with Microsoft Proxy 2.0 on the same computer for getting inbound mail from Internet. Can some body help me how can I use exchange server with proxy server 2.0 on thesame computer for getting internet mail by configuring exchange server. I want to received mail for my users by connecting with dialup. I have a static IP also and registered domain name.

Regards,

Nadeem