Asus P5WDH Deluxe & RAID/Storage installation?

[Gamehendge Jazz]

In an effort to install four storage drives, I now cannot get the OS to startup. I am unable to advance beyond the "Welcome to Asus Motherboard Make Disk for DOS Menu" screen:
a) Make Intel ICH7 32 Bit RAID Driver Disk
b) Make Intel ICH7 64 Bit RAID Driver Disk
c) JMicron JMB36X 32/64bit RAID Driver
d) JMicron JMB36X 32/64bit RAID Driver
e) FreeDOS Command Prompt
Please Choose a~e:

I have a WD150 Raptor drive installed on the SATA1 connector as the main drive. I have been running Vista on it and at one point had three of the four drives initialized as simple volumes. The four WD500GB storage drives are on: SATA3, SATA4, EZ_RAID0, EZ_RAID1.

I power up, see the BIOS option screen, then a flash of the IMSM/Ctrl-I screen (w/o pressing Ctrl-I), next a "FreeDOS kernel version..." screen, finally landing on the "Asus Mobo Make Disk for DOS Menu" screen.

Following the instructions, inserted a floppy disk & created a floppy of the drivers (error free). But it still returns me to the "Asus Mobo Make Disk for DOS Menu" screen. Even if I remove any or all of the drives, it still sends me back to this screen.

Here's a glimpse at the BIOS:

Primary IDE Master: Pioneer DVD-RW DV
Primary IDE Slave: Not Detected
IDE Configuration -> [RAID] //have tried ACHI & Standard IDE

Boot -> Hard Disk Drives ->
1st Drive: RAID: WDC WD1500AAF
2nd Drive: RAID: Intel Storage
3rd Drive: RAID: External Disk

Touched on this topic in another thread, but I think it would make more sense in its own thread. Not sure if anyone around here can help on this one but thought it was worth a shot. Been fighting with it for a while (stumped). Please assist if you can...

[UkGamer]

Have you removed the installation CD and set it so that the CD drive is not in the boot order? If you do that I would expect it to say please insert a proper boot media and press a key.

I'm sorry but I don't really understand your post to well, From what i can see you have installed Vista on a single drive before you have set it to RAID. This is where I think the problem lies because the the motherboard is reading it as if it were half of a raid array :
1st Drive: RAID: WDC WD1500AAF
When in actual fact it is just a single drive.

Try setting the HDD mode in the BIOS options back to SATA for the moment and see if you can get into windows and get it to recognize the drives, if so you can install the driver and it'll be sorted.