I have searched the web for more information and installed some of the cms there are. I found the easiest to use was e107 http://e107.org/news.php

There are also
http://mamboserver.com/ , http://www.joomla.org/ , http://www.xoops.org/ and http://www.phpnuke.org/

The problem with all these systems is that they let me choose from very basic and standart templates.

Does anyone know of a different cms that will enable me to build my website on my own and then connect it to the management system?