We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
REVISION UPLOAD PROBLEM
I just uploaded a revised edition to an already published work. It was accepted and all that. However, not all the corrections are in the newest copy. The weird part is that the ones that are in it, are in the back of the book toward the end. The copy I downloaded was from Lulu, not from one of the other platforms as I know it takes a number of weeks for those copies to process through. I also rechecked the files on my computer that were used for the upload. It checks out okay. Any ideas?