And, February 18 should be "The first operational KC-767A was delivered to Japan on February 19, 2008, with the second KC-767 following on March 5."
Also see at:
http://www.boeing.com/ids/globaltanker/program/japan.html
for Boeing IDS report.
You also have to differ between the Japanese KC-767J and the Italian KC-767A. The KC-767J got no pods for hose-and-drogue system. Boeing only delivered a 767-CTA to Italy so far.
http://cencio4.wordpress.com/2008/07/02/the-boeing-767-delivered-to-the-italian-air-force/
The lease deal probably would have been more profitable to Boeing had it run over the life of the system but I doubt that was ever the plan. the UK leased a handful of C-17s and soon (as funds became available) turned that into a buy, and I think added aircraft to it. That would have taken place with US tankers as well.
The RAF lease deal was for 7 years. UK decided to buy one C-17 and 4 leased C-17 at the end of the current contract. The US lease deal was differently with a longer duration and worse conditions.
About one thing I'm wondering. The idea was to use an existing aircraft as base for the new tanker. EADS offered one while Boeing offered a non existing version of 767.