iBook G3, boots to Open Firmware

I bought a g3 iBook 600 with 128 ram, combo drive, it had a Panther install, which worked fine, I used it for about a week. Everything about the hardware worked, optical drive played movies booted into OS 9 fine booted Panther fine. I decided that I wanted a clean install of Tiger, dropped the dvd in and booted right to install disk, partitioned the drive began install, computer froze up, so I turned it off, and tried rebooting from the disk, no go, now I can only boot from a external dvd drive and disk utility wont see my hard drive or the optical drive, booting from any disk lower than 10.4 results in a failed boot, booting from combo drive takes me to Open Firmware with a Default Catch 300 error, and booting from a ubuntu disk also gives me a 300 error, I am totally lost, I am fairly certain that the computer works fine, I just need to repartition the drive to install tiger, when I run the tiger install disc and use the diskutil list in terminal it shows 3 small partitions that I think is the HD, but it wont let me edit them, with a (resource busy) or cant edit boot drive error, this iBook is ******* me off. any help would be appreciated