Problem: Book cover images do not display in my bookstore screen

I still have two books that I cannot get to show up in my bookstore
although I've gone through all the section pages at least 6 times for
each book. I have shrunk each *.jpg file so I don't think that is the problem. 
The titles are "William Henry Chriscoe: 1857-1944" and "William Henry Chriscoe: 1857-1944 (2nd in a Series)," both near the bottom of my bookstore title list. See www.hostingauthors.com/bo. . .

Help! Please fix and advise me what I've been doing wrong in my many fruitless attempts to fix on my own :-)  

To make sure your books display in your bookstore you need to upload the book cover for each book. To do this, go to Author Portal > Sections > Other. Remember that you must do this for each of your books you want displayed in the bookstore.

Note that if you attempt to upload an invalid image you will get an error, but that error could be easily missed. It is best to refresh the upload page and make sure you can see your book cover.

It is also a good idea to make sure that all of your book covers are the same proportions to they look great when all displayed on the same page.