Greetings, You can see the demo of PRS plugin here: http://demos.subrion.com/radius_search (top block at right column). This demo based on the Yellow Pages package. In order to check the functionality of this plugin you need to try to find YP companies with USA zip codes which contains YP companies. For example, try to find YP companies with zipcode=38103 and radius=20 miles. Thanks for choosing Subrion CMS!