eth0 vfat (and other modules) in fc3

[Xiaotian Sun]

installed fc3 this evening and it's killing me.

when just upgraded from fc2, everything works fine.  then i reboot it.
 it doesn't load the eepro100, complaining no eth0 present in the
system.  it doesn't load vfat, so some of my partitions cannot mount.

basically when the system bootup, there are only two modules loaded,
ext3 and jbd.  not sound modules, usb modules, etc.

I've been struggling the whole night.  I tried to read the udev docs
but didn't get a clue.