Pppoe thing + working usb driver
Extract the driver first(try one in 1st link) and navigate to its directory with console. switch console to root by typing "sudo su".
Now type "make" followed by "make install"
Now extract the rp-pppoe thing and navigate to its directory and type "./go" now you should be able to configure the connection settings(username etc)
To connect, from in root console(sudo su) type pppoe-start and pppoe-stop to disconnect.
This will work with ubuntu linux and other ubuntu variants as well as some other distros.