Repair Template Site

I have a site built with codeigniter that offers free templates for download in joomla, drupal, xhtml/css, and wordpress. The site comes up fine, but the templates aren't showing. The site has worked in the past, but I've moved to a new host. I suspect the issue lies in .htaccess or a config file. Winning bidder will be given a zip file with 2 templates in each of the four formats for debugging.