A little more detail:
Which "four direction arrow pad" do you mean? One of the two hat switches on the stick or the 4 arrows on the keyboard?
If you use the ones on the keyboard, they will react based upon their programming in your controls file. The Default setting is this:
PITCH_UP=DOWNARROW
PITCH_DOWN=UPARROW
ROLL_RIGHT=RIGHTARROW
ROLL_LEFT=LEFTARROW
In my own personal settings, they read:
PITCH_UP=
PITCH_DOWN=
ROLL_RIGHT=RIGHTARROW
ROLL_LEFT=LEFTARROW
I don't program the left or right arrows since I use the stick to do the rolling. The pitch is instrumental in several other functions, like:
THRUST_VECTOR_UP=UPARROW
THRUST_VECTOR_DOWN=DOWNARROW
And those are the controls for Thrust Reversal on the multi-engines, Collective on the helicopters and Refueling on the fighters.
So you need to program your stick a little differently. With an X52, you can split the refueling and the collective and refuel an HH-53 in flight (in a mission we had to kill because it was X52 only). If you look in the Controls folder on the original YAP CD, there is a Saitek set of controls. Try those.