I downloaded the files to look at them. The two files in the deb30 directory are look like kernel modules, and they are in binary instead of plain text. You most likely have to insert those modules into the kernel on the install disk.
The closest thing to working directions that I see would be to follow the mandrake92.txt instructions for installing on a new system. You basically have to force the module into the kernel of the install disk.
Here are the important parts-
(4) Press <Crtl>+<Alt>+F2 at language selection menu, insert the ITERAID
driver disk into the floppy.
(5) Issue following commands to load ITERAID module.
# modprobe floppy
# mkdir /floppy
# mount -t vfat /dev/fd0 /floppy
# cd /floppy
# cp 2.4.22-10mdkBOOT/iteraid.o /tmp/
# cd /tmp/
# modprobe sd_mod
# /usr/bin/insmod iteraid.o
# cd /
# umount /floppy
(6) Go back with <Ctrl>+<Alt>+F7 and proceed with the normal install.
Obviously instead of # cp 2.4.22-10mdkBOOT/iteraid.o /tmp/ you can use cp iteraid.o /tmp/. Use the iteraid.o for most systems, and iteraid.smp if you have multiple processorts or a dual core processor.
You can also google for a debian/kubuntu install disk that has this module built into it, so you don't have to go through this crap. Also, /usr/bin/insmod does not exist on my debian laptop. The closest I have to that is /usr/lib/klibc/bin/insmod. You'll need to find the insmod program to use it.