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I followed the directions -exactly- to do this, but when I got to the step called "Preparing the
UFD to boot Windows
XP", my usb was drive "E" just like in the tutorial, but this is what happed:

C:\pebuilder3110a>pe2usb -f e:

BartPE USB Installer v1.0.1
Copyright (c) 2005 Bart Lagerweij. All rights reserved.
This program is free software. Use and/or distribute it under
the terms of the Nu2 License.

USB target drive set to "C:"
Checking drive "C:"
Error: Trying to install to your SystemDrive?!?

Aborted...
There was an error, script aborted!!!

Done (program will be closed)
Press any key to continue . . .


???