Spooky 2,
To set the record straight, much of the early FANS 1 work was done by QANTAS and Air New Zealand and Boeing. The actual FAA certification flying was done on QF B744, the first time FAA had conducted basic certification flying "outside" the US, and on "foreign" aircraft.
FANS-1 has been in operation for a long time. I didn't miss the HF, believe me!!
As to the automated position reporting, that is nothing to do with ADS-B at all, and is quite straightforward, the relevant position information at a scheduled reporting point goes from the FMCS system by ACARS (if in range) or by SAT/COMM, either way the position is passed to the controlling centre in a conventional manner for message handling.
Just think of ADS-B as a transponder with a bit more information, it is a position, but not a position report.
Tootle pip!!