Well, it seems Invisionfree has changed to Tapatalk. This wasn't a change I knew about, and has happened automatically. I've updated the permissions, so posting should work again (and mods should be back to being mods).
Obviously things look different, and I'll try and sort that soon.
I'm going to try and see if FB allows linking from Tapatalk, which would help. Invisionfree was blocked by FB, which was really limiting.
Further updates to follow.