I'm currently gathering information to update the guide. One feature I recently decided to include is USB drive support. Like it? I like it a lot --- I used the version of this guide pre XPSP3 with great success --- and USB (> 4.7GB) support would be a godsend. I have an old BartPE XPe USB working, but have never been able to install a new OS from the XPe environment. Granted, in that realm, I had to format it to FAT in order to get everything working, but that goes back to 2007 or so. PM me if there's anything you want help w/ or want me to test.