I need to have a External USB hard drive boot and image a pc as the zen
boot cd would do. I have sites that are not connect to our network where a
external usb hdd would work wonders if I could just plug in the usb hdd and
boot to usb from the bios. I seen other "live" distros of linux
(puppy-linux, feather linux) that boot and run off a usb device. I would
like to do the same with the zen imaging software.

Could anyone give me instructions on what I need to do to accomplish this?