We prefer to keep things on the boards so people can search for the problem.
Right the way you do it is:
1. Ensure an operational Floppy disk drive is in the computer.
2. Ensure a working CD rom is in the computer.
3. Install SATA hard drive, make sure it is secure and has power and is connected to the motherboards onboard SATA controller.
4. Make sure you have all the drivers for the motherboards SATA controller on a floppy disk or disks if there is multiple controllers(if you didnt get pre prepared ones you need to get them off the motherboards driver CD or from the manufacturers website)
5. Put a valid windows installation disk into the CD drive, boot from this, then when it loads it will ask you to press F6 to load additional drivers or something along that line. PRESS F6.
6. Follow the instructions given on screen and load the drivers from the floppy disks.
7. Proceed to the normal windows installation screens by following instructions given. Format the disk to your preferences and install windows as per usual.
And your done, its not that hard. Also lots of resources on the internet about SATA including a million and one tutorials for doing it.