As these skins didn't work for DCS 2, I just did the usual Tako-routine on them. Not much work done except throwing out some old files I couldn't use and then I had to edit the config-files. And that's all I think.
INSTRUCTION: Unpack with Winrar, put the corresponding folders in ..\Eagle Dynamics\DCS World 2 OpenAlpha\Bazar\Liveries\P-51D.
NOTE: This is for DCS World 2 only.