Slider appears in preview but not live on site


Hi, I am using a blogger template called Retina on a class reunion site that comes with an image slider. But the slider has not worked since I installed the template – not with the original images or with my images. It appears in the preview “Live on Blog” on the template tab in the dashboard, but does not appear on the blog site itself. I tried installing a different template that also had a slider but that one didn’t appear either, so I switched back since I liked the other template better. I’ve checked on Mac, PC, Safari, Firefox and Chrome, but it doesn’t appear on any system or browser. If the slider appears in the preview, why doesn’t it appear on the site? And why didn’t the slider from the other template appear either? Thanks in advance. The site is: called dtgrad1976 at blogspot