The install cd contains some very good on how to setup WinPE, but there is a typo. (For the limited amount of people actually interested in WInPE)

WHen your setting up to boot from a HD and remove the ramdisk, there is a line in the instructions that reads:

Bcdedit –store c:\boot\BCD –set GUID path \windows\system32\winload.exe

It should read:
Bcdedit –store c:\boot\BCD –set GUID path \windows\system32\boot\winload.exe

I know this goes out to a limited audiance, but there it is....