As far as I am aware, all roadsters are MY2010+. As Connect Premium was introduced in the roadster first, I think its actually impossible to get a roadster that does not have Connect Premium. Certainly from what you have said, you definately do have Connect Premium
I'll have a look on the US forums and see if they have the PDF of the instructions for the system. Not quite the same as the UK, but it will describe most of it. The differences I do know if is that we have Michellin POIs which they dont and I think they have some radio features (XM possibly) which obviously we dont.