O.K Guys
Try putting Skins in BOTH the Game Root Directory and 1C SoftClub.
ie
C:\Users\your name\Documents\1C SoftClub\il-2 sturmovik cliffs of dover\PaintSchemes\Skins\
AND
C:\Programes Files\Steam\Steam Apps\common\il-2 sturmovik cliffs of dover\PaintSchemes\Skins\
Also make sure you are saving as .JPG @ 2048x2048 and Flatten\ Merge ALL
Layers with Quality set to 100%.
This works for Me.
Cheers
Keith