OS X :: Hidden Google Updater Process

I installed Google Picasa far Mac on a 10.5.6 leopard machine. Today, a window told me that I should update my version of Picasa, but Picasa was not running. The updater was well hidden. In fact, there is no google updater in my StartupItems. Furthermore, there is no goo* process among the running processes. The only upd* process is "update", whose function I ignore. Does anyone know which one is the Google Updater process? At Google they forgot to add "sudo" and User Authentication in the updater. The updater fails also when launched with Administrator privileges. That's funny, the mighty Google offering us such pearls of Mac programming.