When using the new build theme file editor, it seames like that the editor strips off the 'escape' slashes from the text strings.
E.g. extraction from the footer.php
Before
After:
I'v used the Zenphoto version 1.2.3 [3509] (SVN)
I thing that the issue has been there for a while, meaning that I have seen it before this SVN version.
r: martin