My page numbers also show. I do know that if you just opened a new book it may take a little while for the page numbers and progress bar to show. Just start reading and you'll see that they do show up eventually.
STAR TREK: TNG - INDISTINGUISHABLE FROM MAGIC
BY DAVID MCINTEE
I have the same problem with the page numbers only showing the page I am on after I side-load more books. If I open a different book and then go back and open the old book I was reading, it will display the page I was on correctly and the total pages of the book. At least the nook isn't loosing the bookmarks and the page I was on anymore, when I side-load new content. This problem only seems to happen after side-loading new content. Definitely a new, but minor bug.