Setting Up Vista Business on a RAID 0 Array Configuration

Hi

I formatted my Sony Vaio VGC-RM1N which was set up for a RAID 0 Array configuration and installed Vista Business (clean install) and now it doesn't have the RAID 0 Array configuration any more.

It has 2x 500GB HD’s which originally showed up as one TB HD. Now it shows up as having 2x 500GB HD’s.

I would rather get it back to have it was.

Can anybody help me please?

Thanks

Bob