As a basic FileMaker user then you are correct that our plug-in would not work for you "out of the box" as the plug-in is a developer tool.
The demo file that ships with the plug-in is meant only to demonstrate the capabilities of the plug-in and is NOT designed to be or replace any existing solution. If you would like to implement the plug-in into your solution, then your FileMaker developer will need to create the necessary integration scripts in your FileMaker solution. If you do not have a FileMaker solution, then we do sell a Core2 CRM solution (a "canned" FileMaker solution that includes some Address Book Manipulator integration). Here is a direct download link to download a demo:
http://www.productivecomputing.com/solutions/core2-crm-id-64/The nature of FileMaker plug-ins are that they must be integrated into your existing solution. ALL our plug-ins include a demo file that "deletes all records" as the demo file is just a demo.
If you have a developer, are a developer or would like us to develop the integration scripts, then you have a great reason to buy our product. Otherwise if you are looking for a "canned" solution then this plug-in is not for you and you will need to find other means to eliminate double entry and exchange data between FileMaker and Apple Address Book.
