- To test the configuration of the plug-in with all data passed to the Flash file by Flash Remoting, I included the file pi1/index.php. Access this file directly with your browser and add the parameter id with the content ID of the plug-in (i.e. ?id=72). To get the content ID of the plug-in, change to list  view (Web > List in the menu of the back end), go to the page where you placed the extension and roll with the mouse over the icon in front of the plug-in. After two seconds the content ID will be displayed. You can see all passed data of the configuration there. If the value stdClass Object [error] is set, one of the data fields database table of records to display, field name of zip code, field names with the information to display or where / order by clause has a wrong configuration. The value of stdClass Object [error] has the database error for more details.

- For all parameters passed to the Flash file, which are used by Flash Remoting, uncomment the section do debugging output located in pi1/class.tx_zipmap_pi1.php