BSD 4.9 Ethernet Driver?

[HarryH]

BlankHello,
I just upgraded from 4.8 to 4.9 BSD w/KDE and it all looks very nice an fast!  My kernel does not see my Ethernet card: FA310TX Fast Ethernet Adapter PCI by Lite-on Communications.  The BSD handbook says look in /usr/src/sys/i386/conf/LINT for drivers - which does not exist on my machine beyond /usr/src, which is empty.  Where can I load the drivers from the two install CDs, and if I have to go to the Web to get the driver(s), where do I install the driver(s) -    /usr/src/sys/i386/conf/LINT ?

Any help greatly appreciated.
Thanks,
Harry - new to BSD

PS As per your good advice, I ordered "The Complete  Free BSD" book.