I ran "modprobe e1000" and after that ifconfig -a and lsmod are the same.
If you did not bring up the NIC then you will not see it.
To do this first use modprobe e1000
Then use ifconfig eth0 up
If the NIC is up you can use VASM or netconfig to setup the card.
Then try ifconfig -a to see if the interface is up. If it is then edit /etc/rc.d/rc.local and
at the bottom add modprobe e1000
If the NIC does come up but no address then try adding below the modprobe command
I have noticed several posts about that card not being seen during install.