I'm not sure your controls are your problem.
What joystick are you using? Be sure you calibrate it in both Windows and Aces High.
If you are hearing the stall horn and can't go up, I suspect you are not flying fast enough. At what airspeed are you trying to do this? You should be at 250 or more to be pulling up steeply. Even then, if you pull back hard enough you can still cause an accelerated stall. Be gentle.
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Sean "Lephturn" Conrad - Aces High Chief Trainer
A proud member of the mighty Flying Pigs
http://www.flyingpigs.comCheck out
Lephturn's Aerodrome for AH articles and training info!