What, specifically, is the problem?
What happens when you do create a PPPoE connection? Does it connect when you hit the "Connect" button? What error messages are you seeing?
Please describe in great detail the process you're taking, every step, and the results of each step. We are not sitting in front of the computer and modem -- only you are, and therefore, you must be our "eyes and ears" to your computer (which means you need to be very specific and very verbose).