(1) They keep all their firmwares in the same directory.
(2) There's a typo in the 7/24 URL. It reads "24_K", which differs from their usual formula, which would be "24K."
Remember the 7/24 firmware got pulled by Pandigital. I'm using it, and enjoy the increased speed/responsiveness. But wifi is a problem.
Download page is:
Pandigital » Downloads -- Pandigital Novel eReaders