I been looking around for an answer and no luck. What I'm looking for is simply clicking on link that is an image but when you click on it, a lightbox will pop up. So for example Clicking on this will pop up a lightbox, showing the image
I think this is what you have been searching for: http://www.rockettheme.com/extensions-joomla/rokbox You can see the demo here: http://demo.rockettheme.com/extensions/?extension=rokbox
I think a free plugin Lightbox Anywhere suits your need: http://extensions.joomla.org/extensions/style-a-design/popups-a-iframes/19404 This plugin enables you to visit an article, click on an image & the image will be displayed in a smooth lightbox. You can check the Demo here: http://demos.joomseller.com/joomla-plugins/lightbox-anywhere.html and here is Download link: Lightbox Anywhere Hope this helps you!