Well, generally speaking the Army way of doing things works fine for the Army, but is sometimes not the best for individuals. There's a few instances (like flight training) where the Army was better than anything you'd find in the civillian world, but really she'd be better off just learning the basics from an NRA certified private instructor. Most of your local ranges should have an idea of who does that sort of stuff. You can find one and it's usually pretty cheap as well. I'd say handgun training is probably more prevelent than rifle, but they're out there. The quality of training she will get from an instructor, even in a small class, will far surpass anything she would have received from the Army, which is assembly line style to say the least.
As mentioned F23-9 has the scoop on the Army's marksmenship program. I would get the pamphelts/books from the NRA on rifle shooting/competition as well. They're pretty well written, good info, and easy to use. I wouldn't get all into competition until hse actually has the basics down. Competition is great, but there's no sense in overwhelming any new shooter with that scene. You want to make the training as easy and as comfortable as possible.
There are probably several members of this board that are near you that could help as well. If you're anywhere near SE Virginia, I'd be glad to help out anyway I could.
The Army uses pop-up target ranges for qual. It's doubtful that you'd have access to one of those, but the "alternate C" target is basically a series of targets on one sheet of paper. They are scaled for use at 25m, but 25yds is close enough. They have different targets of different sizes on them, that represent what the target would look like at 300M, 250m, etc. You simply shoot the targets at 25m and score it. It doesn't give you the range/elevation and windage practice, but it's better than nothing. You can find them on the net and at gunshows, etc. If you can't find any, let me know and I'll see if I can find any for you.
The best thing any new shooter can do is just learn the basics of safety and shooting and porgress from there. The AR is quite an easy gun to shoot well.
Ross