Newsreading is handled by a separate server, nnrpd, that is spawned for each client. The distribution is a compressed tar file. A new directory and unpack the tar file in that directory. The installation instructions are in Install.ms. If you have a previous release you will probably also want to update the pathnames, etc., in the new config file from your old config.
Configuration is done using subst.
The DBZ sources and manual page are in the dbz directory. Unlike subst, DBZ is kept separately, to make it easier to track the C News release. Thanks to Henry Spencer and Geoff Collyer for permission to use and redistribute subst, and to Jon Zeef for permission to use DBZ as modified by Henry. This work is done by Bob Halley. This version includes support for Geoff Collyer's news overview package, known as nov.