[OS X Emacs] Binding to number-pad keys

[Michael Friedlander]

I just upgraded to Aquamacs 2.0 -- works great!  Except that my
bindings to number-pad keys, eg, 

(global-set-key [(kp-2)]   (quote goto-line ))

no longer work because now number-pad keypresses are reported
as their numeric counterparts along  the top of the keyboard.

In Aquamacs 1.9, "describe-key", when pressing "2" on the number
pad reported 

   <kp-2> runs the command...

But in Aquamacs 2.0, the same "describe-key" command reports

  2 runs the command

How can I get back Aquamacs 1.9 behavior?

Thanks!