I used to be able to click in top right hand corner of a photo and it would flag it. Somehow I have lost this along with the star rating at the bottom left hand corner. Any suggestions as to what I can do to get these back. Thanks
This would be better posted in the Aperture forum.
But that said, you want View->Metadata Display->Viewer->Show Metadata (or Browser->Show Metadata). Try the U and Y hotkeys (and when you can see data, hit shift-U and shift-Y to toggle beteen more and less data).