After using my small flatfile cms for over a year I convinced the "Europese Snorrenclub Antwerpen" to switch to Xoops. So, I made a new header, tweaked the css of the original theme (obscene) and thought them how to use Xoops...
(Snor is Dutch for Moustache - having a moustache is the necessary qualification for membership of the Moustache Club of Antwerp)