Heya and welcome to simV
I used World of ai http://www.world-of-ai.com/
it has all the ai packages you want from BA to Qatar. you need to install the installer first and then it puts the files into the right places for you
couldnt be simplier
i have windows 7 and for some silly reason windows 7 doesnt allow world of ai unless you change in your computer settings for you to have all control ( its a right pain
) but after thats sorted it works like a treat!
give it a try and lemm know what you think.
oh some packages dont suport DX10 so some airlines may turn out white if you have DX10 enabled but most do
best of luck
and i hope i helped