Driver update for Storage controllers:SCSI/RAID Host Controllers?

Thanks again Don for the information you posted regarding my thread. Does
anyone know where I can find a driver update for storage
controllers:SCSI/RAID Host Controllers? I've tied Windows Update but its says
there's no updates available? When in Device Manager and after clicking on
SCSI/RAID Host Controller and then the driver tab I get the following: Driver
Provider: Unknown, Driver Date: Not available, Driver Version: Not available,
Digital Signer: Not digitally signed??? When I bought my comp. a month ago
it was like this? Without this driver I can't upgrade Windows Vista Home
Basic to the retail version I bought of Windows Vista Home Premium!?!? Need
help here!!
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Thank-you!