pre-RC1 nvidia nforce4 raid drivers

Well I down loaded pre-RC1 and found that the nforce4 beta raid drivers,
for beta2 do not work for the pre-RC1 install,
so I had to install it on an 80gig IDE drive,
now the silly thing is after it installed, it showed the raid0 drive, in my
computer
so pre-RC1 must have the raid drivers,
so being the smart guy that I am, I figured ok i'll just reinstall pre-RC1
and tell it to install on the raid drive, well it then showed the raid0 drive
when it got to where,
it asks were to install, so I put it on the raid drive, then after it loaded
files,
and expanded files, it restarts computer, and then comes back saying it
can't find
partition to load pre-RC1, so then it rolls back install,

so why would it be able to see the raid0 but then it will not install on it,