update wgPicasaYesterday we found out Google has changed his API of displaying images. Therefore the thumbnail size isnot working anymore. We have created a new component which will have a solution for this problem.
You are able to download the NEW component by the normal way, login and go to the download page..
It´s possible to install the component directly (you don't have to uninstall it first)
31-05-2011, Update: Picasa has recoorect his API so all is working correctly, also with older componets