1) Click on how you want to search for the driver on the frame on the left.
For example, if you have a keyboard and want the driver, you could click on type then select keyboard.
2) Expand the relevant sections for your driver.
For example if you have a keyboard made by Hewlett Packard select "Hewlett Packard". Continue on, then click on the relevant driver.
3) To download the driver, click on the http:// link at the bottom of the page. This will bring up a window asking if you want to save the file to disk. Save the file in an appropriate place on you hard disk.
Alternatively, use the search option at the top of the page, using the wildcard * to represent any number of characters.