Vista 64 & Asus A8N-SLI delux + SI 3114 raid problem

I'm trying to make a clean install of Vista 64 business. I downloaded several
64bit Sil drivers from the site of SI and AMD (only the XP 64 version, vista
not present). I put it all on an usb-key in started the installation. I
searched the USB during the installation and the Driver from AMD was
compatible. After that, installation of the files is allmost instantaneous
(suspect) and the expansion of the files take some time. In the end, after
the first reboot I get an error on the sil driver and the whole installation
is broke. Can anyone explain what happened or point me to working driver ?

Kind regards,
Who am I