If you're looking at the site now - instead of reading it through a feedreader - you will notice that the site looks... different. Otherwise, you might have noticed that the feed, along with the rest of the site has been offline multiple times this weekend.
Some serverside problems allegedly caused by 'scripts' on hoeben.net prodded me to bite the bullet and update to Drupal 5.x. The update did not go as smooth as I have come accustomed with Drupal updates, but things seem to be working ok now. I hope to reintroduce the subthemes for different sections of the site soon(ish).