Lightbox for "Bigger" Image (not original image)

deejeecee

Hi guys, I'm trying to use Lightbox for Bigger Image.. which shows when u click on a thumbnail...
anyone know how to do this? I can't find the correct function to call for it, cause if i just add the Lightbox "rel" it opens the .php (page) instead of the direct image..

please help

acrylian

http://www.zenphoto.org/documentation/functions/_template-functions.php.html#functiongetSizedImageURL