Don't know. The picture was a google search. Since the Airspace Compilation is free, no worries about copyright.
Here is the latest version (v 3.0). Expect the same standard of grammar and typo errors as you would have gotten from Forgeworld! This version has new aircraft and has combined the previously seperate advanced rules into one document.
You can find the following....
1. New factions for AI includings Necrons, Varingyr (squats), and Dark Eldar
2. Special Equipment for all
3. A metric ton of new aircraft
4. Experience rules for campaign play
5. Fun new advanced rules
6. Shedloads of new missions/scenarios
You can find it all here:
http://z8.invisionfree.com/Airspace/index.php?showtopic=970&st=0&#last