This install is for SERVING a Plone site. If you want a Plone site try asking your internet hosting admins for support. Plone is a Content Management System with support for document collaboration. It runs on top of Zope, and most things written for Zope work with Plone.
I am currently reviewing Plone for a customers use. Install this Plone if you want to evaluate it. Install is all GUI, no need to dive into command line at all. Administration is easy, the readme file from the installer gives the URL and password for the local Plone install.