Switched to OS9 startup - now G4 won't boot

I really seem hosed.
I went to system preferences, changed to my OS9 startup disk and restarted my "quicksilver G4".
The Mac went to a grey screen and then nothing more.
I have tried rebooting holding the "X" key but that doesn't work.
I have used the OSX install disk to run disk utillities. It sees my program disk and I repaired all permissions but STILL I cannot get this to boot.
I have unplugged all USB & firewire connections except the keyboard/mouse.
I have even removed my scsi card.
Nothing seems to work.
I tried rebooting from my OS9 CD and it starts to do so but then gets hung.
Is there ANY way to get my MAC to go to it's OSX start-up disk?
The only thing I know to do is reload OSX but wouldn't that wipe my disk clean?
Any help is appreciated.
Gary
933mhz PowerPC G4 Mac OS X (10.2.x)

Yes. I have tried the solutions in that document.
I have tried the "option-command-o-f" and then reseting things.
I have tried the "Option-command-p-r" to reset the pram. Although when I do that, the screen remains black for as long as long as I hold those keys down. When I finally release the keys it gets back to the grey screen that now has a icon. The icon is a folder with a flashing question mark in it.
I have also tried to restart in the "single user" mode but I don't believe I have ever gotten that to work.
I have now restarted my G4 with a firewire cable between it and the laptop I am using to type this (holding down the "T" key) and I can see the program disk on the G4.
So it would seem it is not a drive failure.
I'm not sure I am seeing the OSX system though. I see one item named "system" but doing a "show info" tells me that system is the 9.2.2
Is there someway I can check to see if the OSX system on the G4 is OK using this firewire mode?
933mhz PowerPC G4 Mac OS X (10.2.x)

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