NetBSD 4 on Cats

I have just tried installing NetBSD 4 RC 1 on my Cats
from CD using the 4.0 Cats ISO image. I did not get very
far. My Cats is running Cyclone 1.3 as the boot loader.
The installation kernel in the root directory is in
ELF format but Cyclone does not support ELF, only AOUT.
However, the install kernel netbsd.aout-INSTALL in the
cats/binary/kernel directory also appears to be ELF
format rather than AOUT so that one is not usable either.
Is this an oversight?

Dave Daniels