I'm pretty sure I've bricked my c1000
I tried installing OZ and got a kernel panic... I've tried using the NAND from Trisoft with the "DM menu" but it comes up with "file: SYSTC100.DBK' not exist file.
Have I cooked it?
You cannot brick production C1000 by a bad kernel. Did you use SD or CF card? You cannot use SDHC for that.
I am not sure about the directory you have the backup file to put to, but you can try Backup and you'll easily see it.
Maybe even installation of new kernel from the Japanese "OK menu" may be sufficient.