Hi Hennjj, welcome to Simviation!
OK, as regards the aircraft tuning hard to the left, it sounds as though either your joystick is configured wrong in FS2002, or it may be faulty.
A good way to test this is to go to "Control Panel" in windows and find "Game controllers".
Find the "Properties" button and have a look in there, this will give you access to the calibration for the joystick, and allow you to see if is malfunctioning.
Also, it is worth bearing in mind that due to the tourque produced my the engines on aircraft, they will pull to the left as you apply power, so you have to compensate with rudder or trim.
As for installing aircraft, there is an excellent tutorial here at Simviation:
http://www.simviation.com/acinstall.htmOther tutorials can also be had here:
http://www.simviation.com/fsdhelp.htmHope this of some help,
Ric B.