As you seem to be having problems (as per your personal mail),
see
http://www.ilug-cal.info ---> articles -->newbie for a tutorial.
Also post the output of
#sudo ifconfig -a
(for your ethernet card)
You just need to do the connections (no usb cables) and once the 'link' light is on
do
#sudo pppoeconf
and follow the instructions
Note: you will be using dynamic IP
...rest will be automatic