Apologies, my memory isn't very good. The linked post is for something a bit different than this.
On WIndows, I've just changed the basepoint for an image frame to the centre point and the frame rotates about its centre, so that looks right. However, I can't use the SHIFT key to do anything with the image within the frame, no rotation, no effect at all and I think I've tried every combination of keys/drags/scrolls/clicks.
Adriana, can you explain exactly what you are doing, on what OS, and what you expect it to do please?