There's no such thing as Linux 9. I assume you are talking about Red Hat Linux 9, which is a pretty old version.
If you have a driver for your network card, and you already extracted the source doe, there should be a file called README or some such thing. It should contain information on how to install the driver. Alternatively, the place where you got the driver from might have instructions on how to do it.
If you tell us what specific hardware you have, we might be able to help you more specifically.