I did an upgrade from 0.8 to 1.0.1 and everything works fine except the last image of an album. You can see the thumbnail in the overview, but on the image page the following error occurs instead of the image:
<b>Fatal error</b>: Call to a member function on a non-object in <b>/.../zen/template-functions.php</b> on line <b>656</b>
Feel free to look at the example galery: http://gisela.nic-id.de/zen/Weihnachten05/DSC00594.JPG
Thank you for any advice.