Thought I'd post the resolution to this, in the event someone else trips over this.
I spoke with the experts at TechEd last week in Las Vegas.
Connect via Portal link is not possible. I had a log on created for use with the SAP logon application.
With this complete, I had to create a manual conection, in ADT, and then was able to connect.
Justin
P.S. - I should have added that I downloaded Eclipse Luna and the lastest version of ADT, 2.31. Not totally relevant to the solution but thought I'd mention it.
Message was edited by: Justin Loranger