Hi, I'm not sure where to file this since there isn't a particular Kickstart section. Kickstart is unable to correctly configure hard disks over 6.0 GB. I don't know the why, but fdisk can't directly handle disks over 6G (cylinders over 1024) and one must manually set the number of cylinders. (in fdisk, "x", "c", "# of cylinders", "r") That's not your bug, but there is no direct way to set this via Kickstart, limiting it's use.
boot into the install with "linux hda=ccc,hh,ss". This should allow kickstart and the installer to do the right thing.