Actually, there past v17 (or at least that's the last version I used when making the video tutorials on AMVGuide
). These days, it seems like they've done away with version numbers and simply use Year to denote the software version. So they call it Magix Movie Edit Pro 2013 now. But I have no clue if the newest versions are any good.
Not that it matters much to me. As long as the footage is frame-accurate and scrubs nicely in the timeline, I rarely use any of the effects features anyway.