Just thought I'd let you know that I've created a couple of brief tutorial videos for MuseScore. They are part of a series titled Musescore in 10 easy steps and they'll cover the basics of score setup, the MuseScore screen, note entry etc. I'll be creating the remaining videos in the series in the near future as soon as I find the time! Subscribe on my blog, YouTube or Vimeo to get informed.
All the best,