Try adding the following in the DBTS Form Processor Includes, in the Before Data Reception Custom Processing:
$_POST['Google_map_link'] = "http://maps.google.com/maps?q=".$_POST
unset ($_POST['longitude'], $_POST['latitude']);
Where ofcourse "Google_map_link, longitude, latitude MUST be the actual names of the fields.
The linking will be automatically acheived by the processor.
Please note that the "Includes" do NOT work anymore the same way as they did. In the earlier versions, they worked including an external file with the PHP code, now they work by adding the code DIRECTLY in the DBTS Form Processor.
You can still include an external file, but you need to type the inlusion comand like
I'm telling you this because I know you have used in the past the "Includes" and, if you update to the lastest version of the DBTS Form Processor, they will probably not work anymore if you leave them as they were.