Clyde,
I am also looking to use the left-keypad keys on rhel3U8. I've modified the XF86Config file to indicate "input device"
"Input Device"
Identifier "Keyboard0"
Driver "keyboard"
Option "XkbRules" "xfree86"
Option "XkbModel" "sun_type6_usb"
Option "XkbLayout" "us(sun_type6_usb)"
Option "XkbSymbols" "us(sun_type6_usb)"
EndSection
This seems to recognize the keys if you run xev window.. but the function itself doesn't work.
Any help is GREATLY appreciated.