260510 modify dealer script

My client currently has a dealer php page/script that I had designed for them to return all available dealers within 100 miles of a given zip code. They have a change request. Currently the results from the query are sorted by Zip Code. They would like the results sorted my distance from the inputed Zip code. Here is the url of the current page: (go ahead and test it if you like); [login to view URL] No also as an optional component; this pages is actually run inside of a Joomla wrapper, if you have Joomla experience and can make this into a component or module, please mention that and state separately the cost involved. Thanks. -Steve