Lightbox is a free program from huddletogether.com, it allows for bigger images to be linked to thumbnails in a unique fun way. The trick with using Lightbox is that after you download and unzip the folder, that Lightbox folder has to be located in the same place as where the rest of your files are. For example, you want to use Lightbox on a picture on your gallery webpage, the Lightbox folder should be located where your gallery page is. The next step is for you to drag/copy the js, css, and images folder out side the Lightbox folder. Lastly after you have inserted the JavaScript and CSS files into your header part of the code, you need to put in rel="lightbox" where each picture is linked (http://www.lokeshdhakar.com/projects/lightbox2/ has more detailed steps on how to install Lightbox).