I instal in my server Zenphoto 1.29 . I turn on google maps and install only give API key ... .Plugin is turn on but in my page plugins is not work , quest and admin don't see nothink . What Can i do work.

1. Zenphoto 1.2.9 is outdated.
2. Not all themes (you did not say which you use) have support for Google Maps. You might have to add it to the theme yourself. See the documentation and examples in the standard themes.