Your settings for Joomla are way messed up; when you click Reviews or any of the links, index.php should -not- show up as a part of the url. That's whats causing the problem it's trying to load all the images and theme data from the index.php folder, which doesn't exist.
Check your settings for what I believe joomla calls the site-url or home-directory - if it has index.php in the path, try removing it, clearing the cache, and then trying it again. Other than that I'm not sure of how exactly Joomla works, but it's definitely a settings problem.