Thanks for your reply and the list of template overrides I can make.
I am currently using the 'Phone' field as an input for Longitude/Latitude co-ordinates for Google Maps and using these co-ordinates instead of the Full Address (I need accuracy!). However, every time an update is made it will delete my custom Google Maps co-ordinates and revert back to the Full Address.
As a future request, would it be possible to add a new Longitude/Latitude field in the admin area and a check box saying 'Tick this box to use the longitude/latitude instead of the address'.
This will be a massive help for some of my websites, and I will gladly make an additional donation!
Thanks in advance