This is not exactly as it was on http://wimleers.com when it was on Drupal 5, but it is very close.
In Drupal 7, it now requires far less code thanks to Drupal's subtheme functionality. This is a subtheme of Garland.
The new http://wimleers.com, designed in 2011 & 2012 by the awesome Xavier Bertels (the first time I've hired a professional designer!). The logo was designed by the at least equally awesome Ine Spee. Both of them are from my hometown of Hasselt, Belgium :)