we will need more details to help you with this. What is your Aperture version? Do you have a managed or a referenced Aperture Library, and where is the library located?
When I last opened the book, many of the photos were missing, even from this project.
Where are the images missing from? Are the missing from the book completely, or do you no longer see them in the filmstrip in the Browser when you browse your photo book?
even from this project.
What is this project? Do you mean the project you created your photo book in?
The photo boxes still show and most I had resized.
Are the photo boxes empty, or do you see the images you placed in the book on the book pages?