After re-reading our dialog, it seems to me that the router is all set up.
All you should have to do is tell Ubuntu to use DHCP, that's it. You are NOT
going to setup a modem or do the PPOe stuff in the Ubuntu OS. Just try to set
it up as a PC on a network and all should go well for you.

I work in a small computer shop right now, so from time to time I can respond
during the day depending on the work load. Wednesday I start my new job as a
mortgage banker. So, I'll do what I can. The other thing is if you are
state-side I can just give you a call one evening. It doesn't cost me anything
as I have VOIP and most calls are included in my month fee of $16 from Lingo.
Later...