Silly me. After reading about syslinux it suddenly dawned on me I was still making it too hard to transfer Ubuntu 7.10 LiveCD from CD to thumb drive. The key difference is copying all the files in the isolinux directory on the Ubuntu LiveCD to the root of the thumb drive, and renaming isolinux.cfg to syslinux.cfg. So here are simpler instructions for creating a bootable Ubuntu Live Thumb Drive under Linux.

0. If you don't have an Ubuntu 7.10 Desktop LiveCD handy then download the ISO. If you do have it handy (you installed from the CD-ROM) then just drop it in the CD/DVD drive on your computer. If you've downloaded the ISO then open a terminal window and mount the ISO:

   sudo mount -t iso9660 -o loop /[location-of-iso]/ubuntu-7.10-desktop-i386.iso /mnt

1. Insert a USB thumb drive into a conveniently empty USB port on your Linux computer.