if you are talking about the extender (I assume they have them in the UK), mine (one of the early one's) did not come with one. Only the 'duck head' plug. I believe you can use the extenders from the laptops, although I haven't tried it.
Yeah it does. Mine is not actually plugged into the wall directly, i just used an old cable that came with a laptop power pack so that it is extendable.