Hello,

I was thinking upgrading from 1.4.4 to 1.4.6 should be very simple. Yes it was BUT I lost several things :
-album description (not showing anymore)
-album tags
-album title
-images order (back to basic date order)
-image title
Almost everything set back to blank values and default options ...

Upgrading is quite simple if you follow the instructions on http://www.zenphoto.org/news/installation-and-upgrading#upgrading.
Note that we only test upgrades from 1.4.5 to 1.4.6 but not from older releases. Although I did successfully upgrade from even older versions myself.

Are you sure you used the same database with the same database prefix on upgrading? Normally you should not change the config file. Otherwise of course all is created new. Best review your database via a tool like phpmyadmin.

You're right.
Once again I forgot to modify the default table prefix :o)

All right ;-) Although setup actually should have found the exisiting config file and just re-use it.