Can't find some devices like ATAPI ZIP and CD-ROM on /dev after installation

["João Paulo Legat" <jp@xxxxxxxxxxxxxxxxxx>]

Hi,

I did a fresh install w/o problems and after booting I noticed that the 
ATAPI ZIP 100 and the IDE cd-rom were not listed in /dev.

What I did:
1- gone to /usr/src/linux-2.4.0/scripts and executed MAKEDEV.devfs
2- lodaded the respective modules for the cd and zip - ide-floppy, ide-cd, 
cdrom by hand.
3- It worked : )

After that I rebooted and found that the entries for the cd-rom and the zip 
drive unit disappeared again...

Questions: 

1- Is there a way to make these entries in /dev permanent ?
2- Does it have something to do with the devfs scheme ?
3- Why the correct modules were not lodaded automatically ?

Note: I'm totally new to devfs....

Best regards,

JP