I have a workstation imported and I told it to Take an image and when it
reboots, it gets a DHCP address with all the options but it does not take
an image... it just says "Preboot shutting down".

manual imaging works when I press CTRL-ALT during bootup and then select
Maintenance mode imaging.

I've tried different computers and no luck.

I'm running Netware 6.5 and Zen 6.5.