[support] IE bug zen

hi, i have a strange rendering problem excusive to IE6/7 with the zen theme in 5.2 the content always sinks down below the navigation: http://www.htmlles.net/2007/fr/benevoles i have to look here http://meineipadresse.de/netrenderer/index.php to see what IE does with it, because i have no MS windows available. anyone has got an idea what it could be? yes, i applied already the fixes as suggested in: http://drupal.org/node/101305 #14 and #59 but the bug is still there. thanks, mx