[P/O W. 'Moggy' Cattermole]

I've had sound mod for a while; on the recommendations of members of OOF i got sound mod recently. However, i cannot add any new aircraft; both auto installers and manual installed aircraft. I have the new ac installer 3.3; and wrapper, my buttons file should be up to date.

Aircraft i can think of off the top of my head include:
Spitfire XIV and variants
Spitfire XII and varients
Fairey Battle
Typhoon IIb
XP-86 Sabre

I would be most appreciative of any advice.
I have tried both 4.09mb1 version that had mods switched on with no success.