NEVER MIND! I found the instructions -- and then followed them -- and that worked! I'll still have to look at my CSS file for whatever "weirdness" is apparently going on in there, but indeed it was that missing com.apple.ibooks.display-options.xml file that was the issue.
I just added that in... and eureka! It's lookin' good! Some minor bugs (my "ye" is coming out with a space, i.e. "y e", for example), but hopefully I'll be able to figure those out.
THANK YOU SOOOOOOO MUCH!!!
))