RIS issues with a PV 745n

I also posted this as a reply to http://forum.us.dell.com/supportforums/board/message?board.id=pv_raid&message.id=2296&jump=true#M2296 so if you have any suggestions please post there. I figured I'd post here because this is a NAS device and I'm sure other PV745n owners have run into this problem.

I can't get the windows installation to start. The error is:
Setup did not find any hard disk drives installed in your computer.

I have a Win 2003 RIS server set up on the network and the windows setup isn't seeing the array. I am trying to install win 2003 r2 on my PV 745n.

I have the four SATA drives set up in a raid 5 array right now. Could this be causing the problem?

I have tried installing from CD but I get the same error. I have also tried using the latest Dell server administration CD (the one to prep an OS install) but that didn't work either.

Here's my unattend.txt

;SetupMgrTag

[Data]
AutoPartition=1
MsDosInitiated="0"
UnattendedInstall="Yes"

[Unattended]
UnattendMode=FullUnattended
OemSkipEula=Yes
OemPreinstall=Yes
FileSystem=ConvertNTFS
ExtendOemPartition=1
TargetPath=\Windows
OEMPnPDriversPath ="CERCSATA"
DriverSigningPolicy = Ignore

[MassStorageDrivers]
"DELL CERC SATA 1.5/6ch RAID Controller"=OEM
"Intel GD31244 Serial-ATA Controller"=OEM

[OEMBootFiles]
afamgt.sys
cercmgt.inf
cercsr6.cat
cercsr6.inf
cercsr6.sys
gd31244.sys
gd31244.inf
gd31244.cat
gd31244mgmt.cat
gd31244mgmt.inf
txtsetup.oem

And my txtsetup.oem

[Disks]
d1 = "DELL CERC SATA 1.5/6ch Windows 2000/XP/2003 Device Drivers", \raidisk1, \
d1 = "GD31244 SATA Miniport", \disk1.tag, \

[Defaults]
scsi = cercsr6
SCSI = gd31244

[Scsi]
cercsr6 = "DELL CERC SATA 1.5/6ch RAID Controller", cercsr6
gd31244 = "GD31244 SATA Miniport"

[Files.Scsi.cercsr6]
driver = d1, cercsr6.sys, cercsr6
driver = d1, afamgt.sys, afamgt
catalog = d1, cercsr6.cat
inf = d1, cercsr6.inf
inf = d1, cercmgt.inf
driver = d1, cerccin.dll, none

[Config.cercsr6]
value = "", Type, REG_DWORD, 1
value = "", Start, REG_DWORD, 0
value = "", Group, REG_SZ, "SCSI miniport"
value = "", ErrorControl, REG_DWORD, 1
value = Parameters\Device, NumberOfRequests, REG_DWORD, 0fe
value = Parameters\Device, UncachedExtAlignment, REG_DWORD, e
value = parameters\PnpInterface,5,REG_DWORD,1

[HardwareIds.scsi.cercsr6]
id = "PCI\VEN_9005&DEV_0285&SUBSYS_02911028", "cercsr6"

[Files.scsi.gd31244]
driver = d1, gd31244.sys, gd31244
inf = d1, gd31244.inf

[Config.gd31244]
value = "", tag, REG_DWORD, 1

This is a PV745n with the hardware SATA controller.
I got the CERC driver from the Dell Support page for this particular server.
I got the Intel 31244 driver from the Intel Support site.

These driver files are situated under both the following paths:
D:\RemoteInstall\Setup\English\Images\WINDOWS\i386\$OEM$\$1\CERCSATA
D:\RemoteInstall\Setup\English\Images\WINDOWS\i386\$OEM$\TEXTMODE

I'm new to RIS deployments so I'm hoping one of you can point out my mistake. Please be very descriptive in any response you can provide.
Any help is appreciated, thanks.