I did create device from right clicking and had it point to /dev/zip
I take it that you created a desktop icon? The device isn't "zip", it's what you created as mountpoint with mkdir /mnt/zip.
After modprobing you can see if it's attached to sda? device, one of the following should find it:
grep sda /var/log/messages
dmesg|grep sda
You could also try sdb, sdc, hdb or hdc.....
You can test it as root with, say: mount /dev/sda4 /mnt/zip
When you find the device you can add a line to fstab, otherwise only root can mount it. Example if the device is sda4:
/dev/sda4 /mnt/zip vfat defaults,noauto,users,noatime,umask=000 0 0
Best to try mounting it as root first so you'll see if it works, then worry about permissions.