Hi!
I'm newbie in zenphoto and searching for some theme, that could simplify creation of a photo gallery with my albums and subalbums (~50 main albums and ~100 subalbums).

I want to organise webpages like a in catalog: tree view with albums and subalbums hierarchy on the left side of the page (like a menu) and the photos on the rigth side.

Is there any themes for doing that or I have to create it myself ?

Thank you

Use the print_album_menu plugin for such lists (see the documentation). The Zenpage theme for example uses that.