create a file called "startEth0.sh" (without the quotes) on your desktop (right-click your desktop create document-->empty file), then add these lines to it:
save it and then do this:
quick explanation of the commands:
chmod a+x ~/Desktop/startEth0.sh
sudo cp ~/Desktop/startEth0.sh /etc/init.d/startEth0.sh
update-rc.d startEth0.sh defaults
first line: makes it executable
second line: copies the file to /etc/init.d/
third line: configures it to be run at boot (try the command like that first, if it errors out, try it with sudo).
Basically the script tells it to insert the module, and update-rc.d gets it to run on boot, so every time you start the computer eth0 should work fine. If you have any questions, feel free to ask.