I don't know if this link will help you or not but it talks about getting another throttle quadrant's reverser levels to work:

 

http://#####.wordpress.com/pfc-throttle-quadrant-review/

 

This guys reversers didn't work upon landing so he came up a clever fix.I hope it can help you resolve your issue.

Hi,

 

Yes, I have 2 throttles set up to include throttles 1 & 2, spoilers, flaps.  The same programming should also work for the CH products as far as I know.  If the CH throttle has a reverse thrust detend (switch) this should work.

 

Rob

FSUIPC is a really nice piece of software to have, you can control all sorts of switches, axis, throttle, mixture, brakes, fuel etc.  If anyone is using the NGX, it's almost essential to have the registered version of FSUIPC. It's not very expensive and opens up a whole new world of controls that you can't d with FSX.

 

Rob