Il-2 1946 Retail (unpatched) is v4.07m
Patch v4.08m does NOT change il2fb.exe
That means for you:
The crack on gcw for V1.0 is still the right one.
Ps: Patch v4.09 is already out:
http://www.filefront.com/13353434/St...409b1m-Patch/#
No clue about exe is updated, maybe they removed the protection.