Thanks for your help so far. Much appreciated.
Unfortunately, testing has shown, that for whatever reason, the function that writes to _promaps_geocache.xml is unreliable at best.
Too unreliable to be getting the geocoded latitutde and longitude values from for a seperate Google Street view (the goal that caused this initial forum thread).
It seems the best way now is to obtain the geocoded latitutde and longitude values from wagmp_map_1.php directly and have a function within this file that uploads the values to a database?
Could you be of further assistance in describing where/how to best obtain the geocoded latitude and longitude values within wagmp_map_1.php?