Same problem previously reported. It still happens. Went to follow link for more info about the backup/restore and while the URL reads
http://www.zenphoto.org/documentation/plugins/_plugins---backup_restore.php.html/ it's taken me to the page called Testimonials.
Comments
Generally speaking, you should not expect new features that show up in the development stream to be fully documented the moment they show up.
I tried the backup but until I take time, don't know what happened <SMILE>. Will followup with script read soon. No problem.