I'm hoping all hope is not lost. I was able to "boot to the CD", tried to Repair Disk, says "Invalid Extent Entry", and "Disk cannot be repaired"
Tried an Arch and Inst, be failed after verifying the Install Disc, said, "Try again".
Any help is appreciated. BTW, I got to the disc by holding the Opt. key (not C) at start..? Saw Macintosh HD and Install Disc, chose the disc and Utilities menu for Disk Utility.