|OK here is what I recommend you do.|
In Standard CMOS features:
Set SATA 0 & 1 to Auto
In Advanced BIOS features:
Choose the boot drive by model.
Set the SATA mode to SATA.
Set the boot order to boot to the CD and choose the correct CD drive.
Integrated Peripherals Menu
Onchip PATA/SATA Device
SATA Mode – SATA
Legacy mode support – Disabled
JMB362 – Disable
JMB363 – Disable
Be sure you don’t have any sharp bends in the SATA data cables.
Go to the link below and follow the instructions for installing Vista. If the drive is not found, as you described, then you may need to supply the drivers for the South Bridge. Those are on the motherboard manual.
You could set the drive to IDE but the drive will run slower that way. You are better off using SATA.
I recommend you perform a clean install of Vista and partition the hard drive. Make a primary partition of about 30GB for Vista and a couple of core programs.
Second partition size depends on how many programs you have.
Third partition is for personal files like pictures, music, etc.
Additional partitions as needed for additional OSes for example.