Well surely, if your Linux recognizes your ethernet card (like it seems to do, if you get the message at boot like you do
heh), you can usually use
ifcfg or
ifconfig to configure eth0. Well actually what you want is to use
ifcfg, since that's how you tell if you want to use DHCP, for example.
ifcfg writes a file
ifcfg-eth0 that includes the settings for your ethernet connection (like if it uses DHCP to automatically get the ip addresses and dns addresses etc.).