I updated to 1.1.3 from 1.1.2 this morning and sadly all the descriptions are gone now, as are the Titles of the Albums (where they were different from the folder-names), the photo titles and any comments.
Any chance to get that back?

http://www.mypartofthe.net/photo/zenphoto/

You should check your database and see if perhaps there is a new set of tables with a different prefix than you were using before. That is the only way I can see that your data would 'vanish'. If so, just change your zp-config.php file line that contains:
$conf['mysql_prefix'] = "???"; to have the old prefix value.

Praise you!!
it was "zp" instead of "zen"...