hello seth
the windows OS cant install to the sata drive because the sata controller driver is not active and loaded in the OS
you have two options
to put the sata driver from your motherboard or system driver on a floppy disk, then during the windows install you will see a prompt to PRESS F6 TO INSTALL A THIRD PARTY SCSI RAID DRIVER (press f6 and it will see your sata controller driver)
my personal preference ( I am lazy

) is to enter the bios, set the sata controller to "act" as IDE
then it will install the OS to the sata drive, after the OS is installed then you can install the motherboard chipset drivers, once the motherboard chipset drivers are installed, the sata controller then becomes active, after which you will enter the bios again and set to sata instead of IDE
post back