Flicker - I am not sure about the logic of not restarting old threads, it does show you have taken the trouble to look for an appropriate answer before posing a question. I suppose if the user has the software set up to look at first post first (the default), instead of setting last post first, it makes a difference.
You have to go to Quick Menu - Forums, choose a forum, then the upper left button is for new threads in that forum.
Hydrovane wind self steering gear seems to be getting lots of good write-ups. It also acts as an emergency rudder, so is favoured on the ARC, where and emergency rudder is required kit.