Checking the downloads on MediaFire quite a few people have installed the first "BurmaPatch" but nobody has yet installed the second one, and now there is a third.
To clarify they need to be downloaded and run in the UAW150V3 folder in this order:
1. BurmaPatch.exe
This gives you the original Burma set-up
2. BurmaPatchMP.exe
This gives you some improved flight models, SPAW TMods, and the tools that multiplayer hosts need.
3. Today's patch which is the "AVGMultiskins.exe"
It gives you a planeset that has Iron Mike's three multiskin sets for the first, second and third AVG PS units.
Enjoy