Originally Posted by ixtab
To make it short: yes.
If your Paperwhite runs the "official" version 5.3.0, there is currently no known way to install anything not amended by Amazon. Sorry.
YOUR apology not required! Amazon's OTOH...
Ah, well. I like my Paperwhite, but I truly don't like manually managing collections on it. So I guess I'll just be patient. Or get annoyed enough to go back to my K3.