a quick google indicates that you might need the e1000e driver for that device, and that the kernel that comes with Ubuntu 10.04 does not have it. I seems that there is a newer kernel with the e1000e driver backported to 10.04. So, I think you have two options:
1. Install the newer backported kernel
2. Install a distro with a newer kernel that comes with the e1000e driver out of the box.
Once you have a kernel with that driver installed you should be able see eth0 when you "ifconfig -a". Then to get it running
you can add the following two lines in your /etc/network/interfaces
iface eth0 inet dhcp