Issues w/ SATA Hard Drives

I recently re-formatted my Striped 74GB Raptor Hard Drives (Obviously totaling 148GB). I have two other hard drives -- 500 GB SATAs -- and since the reformat I have not been able to see either of these. In the NVIDIA NVRAID set-up within Windows I can see them both and in the BIOS I can see them both, but in "My Computer" neither hard drive shows up. Also, I have SATA Enabled in the BIOS for both drives, as I checked that first. The drives even show up in Norton Ghost; the files and everything are visible when I check. I really just need the files from the 500GB drives...

Motherboard: Asus A8N32-SLI-Deluxe
Memory: 2 GB PCI 3200
Processor 1: AMD Athlon(tm) 64 FX-60 Dual Core Processor
Processor 2: AMD Athlon(tm) 64 FX-60 Dual Core Processor
GPU 1: NVIDIA GeForce 7900 GTX
GPU 2: NVIDIA GeForce 7900 GTX