www.wysiwygwebbuilder.com

This is a bespoke gallery ie custom the only thing I can think of is a extension by Bendigo you can take a look the following url
viewtopic.php?t=21920

Demo
http://www.weberdesignlabs.com/demos/fl ... coverflow/

For all questions regarding the extension please post in the original topic of download that way the builder of the extension can help and answer you.