You can take my game… when you pry my cold, dead fingers off the board!
I have the old edition and haven't played in forever, but would like to help you guys out.
I answered the coastal attack question here.
This is a scan of the 2009 rules that shows victory points:
Continents were vague in the 2009 rules too, but it had this to say:
Continents are shown on this map. (If you're using just the eastern map, you can split Asia into South Asia and North Asia along the north border of Kazakhstan and Sinkiang, and Oceania into Australia and Oceania.)
I think continents only matter for setup though? I think for 8 player you would have: North America, South America, Eurasia, Africa, North Asia, South Asia, Australia, Oceania.
The previous Attack Expansion (2003) had this division:
Hope that helps!