Thank you both for your prompt replies however perhaps I have not explained the situation exactly:
Under the heading catalog/all photographs there is a number 53,380
Under the heading Folders there is now a Drive G and under that a folder, Photography, and under that a folder 2012,
G has 4 pictures,
and 2012 3
the 4 pictures showed up because I right clicked on those images and located them.
Not sure what to do next