Install pgsql directory

I got a server from DELL which contained a Red Hat Linux AS 3 in the box.

It contained no postgresql server which I got from an earlier link, http://archives.postgresql.org/pgsql-admin/2003-11/msg00368.php
When I did rpm of everything I end up with a non-working postgresql.  This may be because there is no /usr/local/pgsql directory.

How/what do I need to do to get the directory structure wherein resides the database data.

Thank you,