After following the info posted by "icerjosh" I managed to get the standard 32-bit / i486 version of Clonezilla to boot on my USB stick with grub4dos.
I copied his menu.lst entry for the "karmic" Ubuntu version of Clonezilla, but then I went to the liveHD instruction page (here: clonezilla dot org / livehd.php ) and checked on their kernel parameters and they were different. I compared the two and did some editing, and here's what I ended up with that worked:
title CLONEZILLA Live CD 32-bit [new approach]
find --set-root /clonezilla.iso
map --heads=0 --sectors-per-track=0 /clonezilla.iso (0xff)
loopback loop /clonezilla.iso
kernel /live/vmlinuz boot=live live-config noswap nolocales edd=on nomodeset ocs_live_run="ocs-live-general" ocs_live_extra_param="" keyboard-layouts="" ocs_live_batch="no" locales="" vga=788 ip=frommedia toram=filesystem.squashfs findiso=/clonezilla.iso
It booted up and I was able to image a Linux hard drive with it successfully. This was my 3rd or 4th attempt to get the USB stick to boot Clonezilla. I have the 32 and 64-bit versions of Clonezilla standard on there. Next I will try to put in the boot entry for the 64-bit one...
I just started looking into using Clonezilla BTW, after having trouble using Acronis to image an Ubuntu server.