Hello im using many file types in zen photo.. i don't need thumbnail for non image files.. so please help me to hide thumbnails for non image files like flv, mp3..

If you only want to show the title instead a thumbnail for multimedia items you would have to do that in your theme by checking with this function: http://www.zenphoto.org/documentation/functions/_functions.php.html#functionisImageVideo. Write a if/else that prints only the title as a link if it is a video else the normal thumb. Please read the theming tutorial first if not familiar with Zenphoto themes.

ok nice reply thanks acrylian..