To add one you simply drag and drop it directly into your folder of choice. E-mail and newsgroup functions are combined in Messenger. This adds ease of use and makes sense to me. It has HTML so you can do most webpage things, i.e., color, images, links, etc. The recipient must have these capabilities also.
Conference provides internet phone, whiteboarding and other conferencing functions.
It is like an IR C chat room on steroids. Composer is an OK basic webpage tool. Keep your eye on MS Internet Explorer 4.x. The browser war is wonderful.