I tried the pad in analog and digital mode. In both modes the sticks and d-pad are not recognized by the plugin.
Here's the relative part of the debug file.
---
Device 2: DX Saitek P990 Dual
Analog Pad
Abs Axis 0: Y Axis
Abs Axis 4: X Axis
Abs Axis 8: Z Axis
Abs Axis 12: Z Rotation
POV 16: Hat Switch
Button 20: Button 0
Button 21: Button 1
Button 22: Button 2
Button 23: Button 3
Button 24: Button 4
Button 25: Button 5
Button 26: Button 6
Button 27: Button 7
Button 28: Button 8
Button 29: Button 9
Button 30: Button 10
Button 31: Button 11
Button 32: Button 12
Button 33: Button 13
---
*HERE* is a screenshot of the setup that resulted in that file.
If I set an axis with "Vert Axis" or "Horiz Axis" it has a Button/Axis name of "Object 275" and does show the proper control (ie. L-Stick Vert for Vert Axis left stick). It will overwrite with any new axis I attempt to define.