How to install the files.

The files in directory
    bin
should be moved to a directory that is in your execution path.

The file uulib/mailcap should be moved to directory UULIB:

Note that the files in this archive provide only basic service. If you want
to be able to handle audio mail and pictures, you will need to get some
extra applications. Recommendations on what to get can be found in the file
README.Amiga.

Read README.Amiga.