I'm new here, and recently found this site when I went around looking at possibly getting new scenery for my FS2002.
I really hit the motherload here, for scenery and other stuff I can use.
I've been a FS fan for a few years now, and by looking at all the wonderful scenery work that people have done for places I haven't even thought of, I am amazed at the number places I still haven't been to in the FS.
Anyway...to my question...I downloaded the LockheedMartin SR-71a Blackbird, (actually just got a newer version today), and I'm having two problems (not really with my PC, but with the plane itself).
How do I activate (or maybe more importantly, deactivate) the afterburners? I notice a lot of the plane DLs don't seem to come with flight operation instructions. At between 45000 and 50000ft, I start losing speed and going into a stall.

Also, I noticed at flight levels above 50000ft the plane starts to bank to the left and right all the time. Is there something I can do to stop this or is it normal behavior for this aircraft? Please note that I don't use a joystick, just the keyboard.
I would appreciate any advice anyone has to offer.

Ray