keybindings help

[Terry <td3201 gmail com>]

I am using suse 10.0 with gnome/metacity 2.12.  I have a multimedia
keyboard that I want to use the volume keys to control the _headphone_
volume, not the master.  I figured I could do this with gconf
/apps/metacity/keybinding_commands and specifying the key in
/apps/metacity/global_keybindings.   This WORKS if I use lets say a
"<Control>r" in the global_keybindings.  It does NOT work if I set the
command to my volume up key which appears to be "0xb0".

I got that 0xb0 from the gnome control center keybindings area.  I set
another command to the volume up key, and thats what it populated in
the key field.  For example, it says my Play/Pause button is "0xa2".

This is kind of hard to explain so hopefully you understand what I
want to do now.  Any ideas?

Thanks!