There have been a lot of little code changes in firmware 3.3.0, and I cant get some of the patches working yet.
So far I have tested: Custom reading footer, font sizes, line spacing (10 and 15 values), margins, advanced font control, brightness fine control, unitless epub line height, synopsis font size fix.
Done but not tested: wifi insomnia, search library default, margins fine tuning, download all in browser.
Not working: Long paragraph bug fix, redundant cover image fix.
Edit: I've created a new thread with
Instructions for patching firmware 3.3.x, see that thread for the latest conf files.