After applying 10.3.9 my caps lock reverted to being a caps lock. I looked in /System/Library/Extensions and AppleADBKeyboard.kext had been replaced.
I deleted AppleADBKeyboard.kext.orig and reran the installer, rebooted, and I'm back up with capslock=control, so no (apparent) harm done.
Is this cool?
Capslock to Control
convert caps lock/enter key on G4 PowerBook
Version: 1.8