I was waiting to see if wiser heads than mine would respond. They haven't as
yet, so here goes:
If I understand correctly, the planes you mention are giving reversed
"steering" on the ground but normal rudder action, right? Also, I assume you'd
like ground behavior to match rudder action; i.e., right rudder pedal should
cause the plane to turn to the right.
Check in the AirEd for the item that defines Center Gear Longitudinal
location. It sounds like the plane in question is a trike with an incorrect
taildragger setting or vice versa. A trike should have positive value for
Center Gear Longitudinal (i.e., its nose wheel is ahead of the cg). A
taildragger should have negative value (i.e., its tail wheel is aft of it).
Obviously Center Gear and Main Gear Vertical locations should be set
appropriately as well; otherwise the plane won't sit correctly. In fact, if the