Theming node for views page
In the Other section of the views edit form, there is a link "Theme: Information." Inside that link there is a list of the many ways to template the view output. As always when theming, you start by copying the base file (e.g., views-view-unformatted.tpl.php), and make your modifications to the copy. Follow the naming conventions given in the link exactly. It can sometimes be tricky to get the dashes correct. Double-dashes are used to separate sections within the filename but single dashes are used to replace single underscores in content names. For example, for a content type named article_ratings, the template file would be named views-view-unformatted--article-ratings--default.tpl.php.