this may help or not.
im using adsl service(not PB..im in outside of US) with alcatel speedtouch pro(external). sure my isp uses PPPoE.
iVasion WinPoET 2.0 & NTS EnterNet 1.3 both works well. WinPoET is better cuz it can adjust some tcp-ip settings in registry(ex>MTU), easy dial-up networking setup, etc etc...