WinPE Boot loader

Hi,

The most common winnt.sif file people tend to use is:
[SetupData]
BootDevice = " ramdisk(0)"
BootPath = " \I386\System32\"
OsLoadOptions = " /noguiboot /fastdetect /minint /rdexportascd
/rdpath=winpex86.iso"

Does anyone know how to get WinPE to load into RAM and boot
successfully without having to have the BootPath point to i386? That
is, can I call the folder containing the following files something else
(like minint, or PEboot):
Bootfix.Bin
NTDetect.Com
Setupldr.Bin

Any ideas how to get this working? I've tried various permutations and
only ever end up with a blank screen with a flashing cursor...

Thanks,
Neill

.