I may be missing the point here by miles but.
If you have a normal ATA33/66/100/133 HDD it should not need any drivers. The motherboard probably does though. I have never bought a retail PC (built own) so have no idea if they ship with motherboard drivers or not.
If you supplied some system details such as
Motherboard make/model(normally displayed during boot-up)
Then someone is bound to be able to point you in the direction of the relevent site to down load the drivers you need.