ie6 niggles

The IE6 niggles for Drupal Commons appear to be many... Just logging into commons.acquia.com with an IE6 virtual pc (http://www.microsoft.com/download/en/details.aspx?id=11575) dredges up a load.

A few:

• Elements drop below each other in the header leading to a very tall header
• Strange green background to certain image elements including logo (png fix not working right?)
• FBSM buttons somehow find their way into sidebar blocks
• Weirdest of all... in the Community->Members section, the user pictures in the 'Most Active Users' block seem to have decided to resize themselves to be larger than any of the other user_picture_meta themed images... I see similar behaviour in later versions of IE. In the case of IE8 they just don't appear. Really odd, can't get my head around that one.