[Devil-Linux-discuss] Problem with custom-cd under Devil Linux 1.6.3 - mkzftree not found, mkisofs

I'm trying to use custom-cd to make a Devil Linux 1.6.3 boot CD with my
new configuration on it.
Running custom-cd under Slackware 13 gave me trouble, so I booted the
Devil CD on my new gateway/firewall machine with an old 4G harddrive
installed.
I set up mount points in /shm.
I copied custom-cd to /dev/hda1 and edited it.
I solved an initial problem by reformatting the harddrive from vfat to
ext3.  (cfdisk wouldn't cooperate, the drive kept reverting to vfat, so I
booted a Linux Rescue CD and used GParted.)
Now the script looks good until it says
 mkzftree not found
...A few other errors that probably are due to NEW/boot and NEW/dir
directories being wanted. I just have NEW/config. Then...
 Bad Option '-L' (error -1 BADFLAG).
 Usage: mkisofs [options][-find] file... [find expression]
mkisofs -version responds 2.01.01a79 c1993-1997
I haven't been able to find mkzftree on the CD, and it looks like a
different version of mkisofs might be needed.

I hope you can help me easily.  My current Devil linux gateway/firewall
has been very satisfactory, but is due for retirement so we can upgrade
the network from 10 speed to 100 speed.
I just re-subscribed to the Devil-linux-discuss mailings and can
presumably receive an answer through the group by that route.

Thanks, KGHN