Hi !!!
What kind of interface is your zip drive, parallel, scsi, or ide?
If it's scsi or parallel then you can use ziptool with it, but I recomend that you download jaZip (an improved version of ziptool with GUI) from here:
http://www.scripps.edu/~jsmith/jazip/
In case that your drive is IDE, then you need to do some things first to emulate scsi on ide devices (ziptool and jaZip only support scsi devices)
1.- open yast and go to system admin -> kernel and boot config, now in there in the field of append for boot parameter (or something like that) type:
hdx=ide-scsi
(where x is the letter of your drive a,b,c,d-> a=primaster, b=prislave, c=secmaster, d=secslave)
save and exit yast
2.- Go to /etc/init.d/ and open the archive "boot.local" and type at the end of the file:
/sbin/modprobe ide-scsi
save and close
3.- Now go to /etc/ and open the archive "modules.conf" and search for the line that says scsihostdapter off and change it for scsihostadapter ide-scsi
save and close
4.- Extract the downloaded file and enter that directory, open the archive "main.c" (or main.h don't remember exactly) and change the device /dev/sda with sda4 (for some unknown reason iomega drives use block 4)
save and close
5.- Install the program and enjoy.
Azael