Help!

I have just bought a machine with an ASRock ConRoe 945G-DVI motherboard, 
and an Intel Core2 Duo CPU.

The machine boots from the 3.0 system I installed from CD, but the 
onboard ethernet, a Realtek 8168 of some sort, appears to be 
unsupported. I know I could probably just drop in an old card, but if I 
could avoid opening the case, by installing some newer kernel, I'd much 
prefer that, as I want the machine to eventually run -current anyway.

Is there a prebuilt kernel I can download? I tried this one: 
http://ftp.netbsd.org/pub/NetBSD-daily/netbsd-4/200608300000Z/i386/binary/kernel/netbsd-GENERIC.gz 
but it didn't seem to have 8168 support either.

I just need the machine to get on the net for now. Any suggestions would 
be most appreciated.

-Lasse