This is not a standard Joomla template, it seems to use a lot of JavaScript to build the site. I checked the source on the home page and I do not see a link to CSS files for the site's style, and it looks like the site is missing its style CSS files. I found these links in the page source that may have the function of setting the site's style
Code:
<script type="text/javascript" src="http://www.polarwebdesignak.com/development/movieguide/templates/mg/js/compat.js" ></script>
<script type="text/javascript" src="http://www.polarwebdesignak.com/development/movieguide/templates/mg/js/sorting_table.js" ></script>
<script type="text/javascript" src="http://www.polarwebdesignak.com/development/movieguide/templates/mg/js/png.js"></script>
<script type="text/javascript" src="http://www.polarwebdesignak.com/development/movieguide/templates/mg/js/tooltip.js"></script>
<script type="text/javascript" src="http://www.polarwebdesignak.com/development/movieguide/templates/mg/js/rounded_corners.js"></script>
It seems that the site's template is in the templates/mg/ folder. Could it just be that the mg template is not selected in the Template Manager?
I looked at your index and ajax files and they both have error reporting turned on. I would think this is something that is only done during testing and development of a site, duh that might explain the development folder name

I tried to download this file;
http://www.polarwebdesignak.com/development/movieguide/templates/mg/js/png.jsthinking it could be to load the image files for your site but I get a 404 not found error. Maybe you just do not have all the files for your sit loaded on the server.