Better late than never, here are a few videos.
Ridge beam - Stage 1
http://www.youtube.com/watch?v=d5f8KPUATv4Ridge beam - Stage 2
http://www.youtube.com/watch?v=MzFW9cIs_fENorth wall plate
http://www.youtube.com/watch?v=MOAWiXIiBuYBy way of explanation. I had 1 5m hoist and 1 3m hoist. The plan was to use them linked together by a rope to get a full 8m lift. The "pulley" at the top of the sheerlegs was a shackle (couldn't source an appropriate pulley locally) and the connecting rope bound against it once under load forcing me to put the ridge beam down on the first floor deck. I had hoped to lift it right over the outside of the frame as riding it against the frame gave me a little more control. In the end (as seen in the Stage 2 video) I had to lift it diagonally to clear the various frame members.
Using this technique I was able to lift these beams completely solo. Earlier lifts of bents were also carried out solo using a smaller sheerlegs made of timber. I'm sure that with some extra thought I can market a one-man lifting experience... now I just need to find French timber framers who actually think it's a good idea!