Help - Setup Vista x64 Business on RAID0

Hi.
I have bought RAID controller and 2 HDs and have set up the RAID from
the BIOS and have installed Vista and so on. My question is, when there
is RAID0, should it be displayed in the system as 1 drive? It is kinda
weird, that in "My Computer" I still see 2 drives and only 1 of them is
used.
here is a picture from "My Computer", Device Manager and RAID manager.

'[image: http://i7.tinypic.com/6uocbwg_th.png]'
(http://i7.tinypic.com/6uocbwg.png)


So, it looks like I still use only one drive and RAID doesn't really
work.

I want to have Windows installed on a RAID0, so I need to set it up
first. But after setup, and loading the RAID drivers into Vista setup,
when choosing which drive to install vista on I still see 2 (both drives
from the raid) drives available instead of 1 single "RAID Drive". Or am
I misunderstanding something.

could someone give some explanations, please


--
tridy