Frame -- Mif2Go -- HTML Help Workshop Problem

[Nancy Allison]

Hi, all.
 
I am using FrameMaker 10 on a Windows 7 system with HTML Help Workshop 1.3
 
I have successfully used these identical tools in the identical versions to produce exactly the same kind of online help in the past, but today I am having a maddening problem: in the .chm file, the Table of Contents includes only one chapter file out of all the chapters in my original book file. (It is the ninth out of ten files in my .book file!)  
 
All of the other .fm files clearly have successfully been converted by Mif2Go and are sitting in the same directory as the one file that the Workshop seems to recognize.
 
How do I get the rest of my files into the TOC of the .chm? I followed the somewhat sketchy instructions in the online Help system of the HTML Help Workshop -- the only result was that the next time I generated it, NOTHING appeared in the .chm at all.
I do hope that someone somewhere is still working with these tools and has an idea what's going on.
 
Thanks!