Power CMS is not intended for simple sites.
it is not intended for portability.
the CMS of Power CMS Stands for Content Management System
The use for Power CMS Is to install it on a clients site to allow them to mange the content of the site without having to use Dreamweaver.
Power CMS would be installed on a site by site basis.
You create the site without content, upload it to the server, run the install script, then start adding the content to the pages.