Anyone here has built the Academy A-10 Thunderbolt 1/72? If so you have seen the pictues of the box. You can see the camo that they have done is not brushpaint. Now how do you do that and what colors should I use? (Jungle camo please) :-)

You probably mean the three color lizard pattern of two shades of dark green and one of gunship gray. This was actually designed for the European theater when the belief was that we'd be confronting swarms of Russin tanks sweeping across the German landscape. This was the first operational camo pattern for teh A-10. For the mopst part, it has been repaced with ghost gray scheme which has, I think, a lower IR signature and helps the palne hide in the haze. I've seen a few desert scheme (Two Guys decals has examples on recent sheets) and an early earth tone polka dot pattern (Tamiya's 1/48 was often shown in this scheme). It's interesting that one of the first test schemes was also the ghost gray pattern.
As to painting it, just get a good five sided view and replicate it with an airbrush. You might resize the pattern to your scale and make templates.