You don't need drivers for the drives themselves. The drive controllers that they plug into do need drivers, however. Did you install the drivers for your motherboard's chipset?
Example: if you build a new computer with an Asus A8N-E motherboard, you'd go "oh, this model of motherboard uses the nForce4 Ultra chipset" and you'd go to nVidia's website to get the driver package for the nForce4 Ultra chipset, and install it. That would give Windows the drivers for the drive controllers, among others.
If you need a hand tracking down the right drivers for your motherboard or stuff, just post what you got, spec-wise 🙂