I have tried installing shadowbox_js ver: 220.127.116.11 both manually and automatically through the dashboard search and install. In each case, WP is saying the plugin is incompatible with WP version 3.3. The client site I want to use this on is http://mtaoc.org which is currently running WP 3.3. I am using a customized version of the 2010 theme.
Any help is appreciated.