It is necessary to update the software used to run this website. This means that the website will be offline a few times over the next weeks. It is not possible to specify when and how long this will be. I will try to minimize the inconvenience and hope for your understanding.
Regards,
webmaster
Update 17 October 2008: the first round is finished successfully.
Update 18 October 16:32: the second round is finished successfully.