Ok, you are quite correct, Zilla only successfully converted the forward.
The scan of the book itself was not included.
Wait, all is not yet lost.
I want you to look again at the page you sent me.
https://www.mobileread.com/forums/att...1&d=1265918443
In the right corner, where the "hand" is, you have page images, link for PDF, and another link for Epub.
Next time try clicking the epub link, should open save menu, save to your computer. Then load to your jetbook either directly with the USB cable or via SD card and reader/adapter.
Including the epub as an attachment.
Please let me know if that doesn't work for any reason.