Hello
I am a new user and I would like to know how to update this new release starting from version 1.2.2.

Thank you and congratulations for this new version.

Actually just follow the instructions on our site: http://www.zenphoto.org/2008/08/installation-and-upgrading/

As you are using Zenpage please read this, too: http://www.zenphoto.org/2009/02/zenpage-101-is-not-compatible-with-zenphoto-123/

I wait...

Thank you