PROBLEM SOLVED!
the readme file contains wrong entries for the ini files;
I will post an example (of the chief.ini), you will get the idea and can adjust the ini files yourself later
instead of:
IJNAkagiCV41 ships.ShipWes$IJNAkagiCV41 2 icons/shipDestroyer.mat
it should read:
IJNAkagiCV41 ships.ShipWesJCV$IJNAkagiCV41 2 icons/shipDestroyer.mat
and later on (also in chief.ini)
instead of:
[Ships.IJNAkagiCV41]
com.maddox.il2.objects.ships.ShipWes$IJNAkagiCV41
it should read:
[Ships.IJNAkagiCV41]
com.maddox.il2.objects.ships.ShipWesJCV$IJNAkagiCV41
in stationary.ini instead of:
IJNAkagiCV41 ships.ShipWes$IJNAkagiCV41 2
it should read:
IJNAkagiCV41 ships.ShipWesJCV$IJNAkagiCV41 2
do this with all the other entries (adding "JCV" like I did) and you are done...
I checked with an old install CUP install of mine and found the mistake rather quickly (I could remember there was something)
alternatively, just check the classfiles of the CV pack, they call for ShipWesJCV instead of only ShipWes...
if questions remain, feel free to ask...
btw ships checked in a quick mission, they work....