There are two things needed in your file.
First Books need a title tag on the first line (as mentioned in the User Manual) formatted as such,
<title>Book Title Goes Here</title>
Second, each chapter title must be delimited with a tab character as such (use tab key, will look like a space),
Chapter Title[tab key]Body text...
So the first two lines of your file should be,
<title>DIVORCE & REMARRIAGE</title>
Chapter 1[tab key]DIVORCE & REMARRIAGE By Bruce Lackey...
Remember, don't use the text [tab key], just press the tab key there. there will not be a visible character, just a space.
Developer, Bible Analyzer
But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness. (Rom 4:5 AV)