Mac Pro RAID problem

I have a newer (last winter) Mac Pro with the Apple RAID card. I am using four SATA drives in a 0+1 array.

I have just been stuck in a reboot loop and had to disassemble my CD bay to get the drive open so I could insert my OS X install disc and try to recover.

During this reboot loop one of the keyboard options I tried was CMD-OPT-P-R. Now that I have booted to the OS X install disc, OS X and the Disk Utility cannot see my hard disk or partition. I am guessing this is due to the reset NVRAM.

Problem is, the RAID utility says I have no RAID card. How do I proceed and avoid re-building the array from scratch?

Thanks,

J.