I have got RF6 going very well and even both mega packs (heli and air)

I never bought any of the exp packs , but downloaded the add-ons from http://www.realflight.com/addons.html I'm trying to do 2-5

I have extracted the files into the G6 data , but cannot see or use any of the content. Any ideas for one who just dabbles in computers.

So far the Sim is a blast , $thousands of dollars of damage already$

I forgot I had ordered exp pack 6 which is supposed to include all content from 1-5. I installed it ok and have all planes from exp pack 6 now, but I have no planes from 4 and 5 exp packs.

Maybe there is a difference between add-ons and exp packs after all.