Hi, you can find the Distribution maps at C:\Program Files\Itoo Software\Forest Pack Pro\distmaps\images.
In Forest 5 there were installed at C:\Program Files (x86)\Itoo Software\Forest Pack Pro\distmaps\images.
The first time you create or edit a FP6 object, it asks for adding the required paths to Customize->Configure User Paths->External files.
Once added, the Asset Tracks should load automatically the missing maps from the new folders.
By the way, the library maps were moved as well. They are now at C:\Users\<username>\AppData\Local\Itoo Software\Forest Pack Pro\maps.
These files are downloaded by the Update Manager, not by the main installer.