Try this. Copy and past this into Notepad. Rename it jsmap.cfg and save it to:
C:\Program Files\HTC\ah2editor\settings (save your old jsmap.cfg in case you need to compare later)
This puts forward at your joystick button 2 and reverse at buton 3 with working CH peddels. I had to guess that your joystick is stick 0 and your rudder is stick 1, it could be the other way around and your throttle could complicate it slightly. It's not that hard to figure out but if this doesn't work, PM the top half of your pre v2.08 patch 2 jsmap file down to But 6 or so.
0,0,Roll
0,1,Pitch
0,2,Throttle 1
0,-1,Throttle 2
0,-1,Throttle 3
0,-1,Throttle 4
1,2,Rudder
0,-1,Left Brake
0,-1,Right Brake
0,-1,View Pitch
0,-1,View Yaw
0,-1,Hat 1
0,-1,Hat 2
0,-1,Hat 3
0,-1,Hat 4
0,-1,Rpm 1
0,-1,Rpm 2
0,-1,Rpm 3
0,-1,Rpm 4
0,-1,Roll Trim
0,-1,Pitch Trim
0,-1,Yaw Trim
0,-1,
0,-1,
0,-1,
0,-1,
0,-1,
0,-1,
0,-1,
0,-1,
0,-1,
0,-1,
0,0,But 1
0,1,But 2
0,-1,But 3
0,-1,But 4
0,2,But 5
0,-1,But 6
0,-1,But 7
0,-1,But 8
0,-1,But 9
0,-1,But 10
0,-1,But 11
0,-1,But 12
0,-1,But 13
0,-1,But 14
0,-1,But 15
0,-1,But 16
0,-1,But 17
0,-1,But 18
0,-1,But 19
0,-1,But 20
0,-1,But 21
0,-1,But 22
0,-1,But 23
0,-1,But 24
0,-1,But 25
0,-1,But 26
0,-1,But 27
0,-1,But 28
0,-1,But 29
0,-1,But 30
0,-1,But 31
0,-1,But 32