[Plugin: jQuery Colorbox] Simply not working…

Hi,
I’m currently using the suffusion theme, and have found it does call wp_head(), yet though jQuery Colorbox is installed and active, and I have saved my settings to automate all images in posts and pages as well as galleries, and have chosen a theme, this plugin is not working. My website is summaestudios.com, and the only gallery I currently have up is on my artist’s statement page. Any suggestions would be appreciated.

http://wordpress.org/extend/plugins/jquery-colorbox/