Did some searching around and found this...
Assuming the info is correct, sounds like you will have your answer...
Edition1 has an 04/05 type motor/electronics setup, and the Edition2 has a 2006+ type motor/electronics setup. You can tell by the front oil pump, the head breather/TOPS valve location/type. Or according to the manual, and the 2 I've looked at, the 4th from last letter of the VIN. If the 4th from last letter is an "A" you have a version1 and you need an 05 ECU part# 420664947, and if it is a "B" it "should be a version2 and you will need an 06-07 ECU part# 420664946. The VIN should tell you, but go by the type of engine in it to be sure.
What we could do is, get a few pics of the 04/05 engine compartment and some of the various 06 models and we should be able to figure it out I would think...