Internet Locator Server and Netmeeting

Hi,

I have all the instructions for setting up a Internet Locator Server 3.0 on Site Server 3.0. Problem is Site Server 3.0. Does anyone know what the replacement product is? Does anyone know how I use it to set up Internet Locator Server so that I have my own server for Netmeeting that my clients and I can log on to for Netmeeting?

Thanks