Miriam - how nice to be going on the PG for your third trip! I expect that you've read that the Sofitel has finished their remodeling and has reopened. I'm sure that their beach is still considered the prettiest one on Moorea. Sorry that I don't have any information on the IC motu transfer. Have you tried going over to
www.tahiti-explorer to ask the question there? There are many people on that board who are experts for all the information on those islands.
Have fun and a very happy new year.