You never said, are you trying El-torito?
If you do you must run hd2iso from first partition. If you can't follow my
previous post.
You are using same disk partition order as I do (very easy to use and very
dangerous if you skip only one procedure).
Also you should use C: (I don't think that you must, but ....)
Read how to do this:
http://www.microsoft.com/windows/embedded/community/tips/xp/runtimepartition
..asp
Also decrypt my notes:
El-Torito
Part 1 boot
Part X XPe(El-torito)
REG RAM EWF Enabled and point to Part 1
El torito component should use default 'ELTO' disk signature.
SYSTEM\MountedDevices\\DosDevices\Z: REG_BINARY 45 4C 54 4F 00 7E 00 00 00
00 00 00
SDI Mgr for disk active partition.
Hd2iso
CDBurn
Note it is very important that you protect first partition (not C

with RAM
EWF solution that i have described on
www.xpefiles.com in ramewf.zip
Also make EWF enabled by default since it won't protect XPe partition during
the boot from HDD (It will probably protect Windows XP partition).
and you should do things that etprep does manually, or at least you should
call only some phases manually.
Good luck with all this,
Slobodan