Why can't FrameMaker find an image when I change the book's location?

I have several books located in a system directory that contain several images.  Some images are repeated in the books so, I have one location (another system directory) where I import them  as required into each of the books.  I have been asked to move these books from the system directory to my local hardrive.   I have copied all the books, image files etc, exactly as they were in the system directory into the new location on my hardrive.  When I open the books in the new location on my hardrive, FrameMaker cannot locate these images and I get a  Missing File error and dialog screen .   When I import the images I always select Copy into document -   I am wondering why FrameMaker cannot find the image even though the directory structure has been copied exactly and also because I copied the image - I did not reference them?    I have attached a screen capture of the Missing File error I am getting.