[CentOS] recompile kernel 2.6.20.7 (so I get updated forcedeth driver)

I installed 2.6.20.7
copied /boot/config{something} to .config
make oldconfig
make oldconfig
make menuconfig - turned on drivers -> Sata -> nvidia
make bzImage
make modules
make modules_install
make install
rebooted.

Seems like the issue I had with forcedeth (nvidia) bad MAC address is gone.

However, the iptables gives errors.

Where in the menu tree do I enable what iptables needs???

I have looked around in there and did not see it.

Thanks, (I know I'm not compatible now... :)

Jerry