I am able to work around it in the following way. If I go online, many downloaded skins show as red (unavailable). But if I select a different aircraft (something other than a P-38J), then go into its skins (don't have to select anything, but need to look at the list), then select a P-38J again, I see the available list of skins that were downloaded for the P-38J.
But if I go offline, view skins, then go back online, the list of skins for the P-38J will show many things redded out until I do the above procedure.
Thanks for the info, Skuzzy. <S>