...and I have no idea how I managed it. Apparently there was a frigate thing and a capital thing and some little red lights appeared and I clicked on attack and it ended. Phew! It was quite exciting, I can tell you.
I just wanted to share. You know, yay me, that sort of thing. I spent three weeks playing EVE online and on the penultimate day someone had to show me how to complete stage one of the first tutorial. So really, this is a massive leap in progress.