Hi Airwalk,
I had a similar situation, where my two LAN ports were recognized as en1 and en2 (no en0), so I was having trouble getting things to work also. However, I don't have a wireless card... so I'm not sure if this will help you, but...

In order to get one of my LAN ports recognized as en0, I backed up and deleted these files:
/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
/Library/Preferences/SystemConfiguration/preferences.plist

Then I rebooted with an ethernet cable plugged in to the port I wanted to use... and it was recognized as en0!
Finally, I added ethernet to my EFI string, following the directions above, rebooted again, and
Netflix works!
Thanks everyone.