Adding SATA/RAID drivers to BartPE

I'm trying to add SATA/RAID drivers to my BartPE disc to future-proof it if I ever decide to buy a SATA hard disk. (This 2004 mobo does have two SATA 1.5 Gbit/s ports.)

I followed Bart's instructions, but the directory structure of the instuctions doesn't match mine, so I tried filling in the blanks the best I could by copying and pasting files and folders to match it as closely as possible.

Is the directory structure critical to making added drivers work, or is it enough to create a custom folder and add txtsetup.oem, filename.cat, filename.inf, and filename.sys inside it?

Bart's directory structure
drivers\SCSIAdapter
drivers\SCSIAdapter\adpu320
drivers\SCSIAdapter\Create a folder here and put the storage drivers in it
drivers\SCSIAdapter\adpu320\MAXIO64K.REG
drivers\SCSIAdapter\adpu320\README.TXT
drivers\SCSIAdapter\adpu320\TXTSETUP.OEM
drivers\SCSIAdapter\adpu320\U320DSK1
drivers\SCSIAdapter\adpu320\WIN32BIT
drivers\SCSIAdapter\adpu320\WIN32BIT\ADPU320.CAT
drivers\SCSIAdapter\adpu320\WIN32BIT\ADPU320.INF
drivers\SCSIAdapter\adpu320\WIN32BIT\ADPU320.SYS

My directory structure
drivers\SCSIAdapter
drivers\SCSIAdapter\VIA V-RAID (Are spaces allowed?)
drivers\SCSIAdapter\Create a folder here and put the storage drivers in it
drivers\SCSIAdapter\VIA V-RAID\XPX86.oem (The driver package didn't have a "txtsetup.oem.")
drivers\SCSIAdapter\VIA V-RAID\VRAIDDrv
drivers\SCSIAdapter\VIA V-RAID\VRAIDDrv\XP
drivers\SCSIAdapter\VIA V-RAID\VRAIDDrv\XP\x86
drivers\SCSIAdapter\VIA V-RAID\VRAIDDrv\XP\x86\viamraid.cat
drivers\SCSIAdapter\VIA V-RAID\VRAIDDrv\XP\x86\VIAMRAID.INF
drivers\SCSIAdapter\VIA V-RAID\VRAIDDrv\XP\x86\viamraid.sys

pebuilder.log
Processing INF file "C:\pebuilder3110a\drivers\SCSIAdapter\VIA V-RAID\VRAIDDrv\XP\x86\VIAMRAID.INF", class "SCSIAdapter", provider "VIA Technologies, Inc.", version "11/26/2010"
Unsupported device class: SCSIAdapter
Don't worry pebuilder will use: txtsetup.oem
Collecting files done

Also, I don't see VIAMRAID.INF on my BartPE disc when I explore it.