Hi Trip
I could see a couple of possible approaches.
1. Remove all the topics that are linked, and directly insert
the images within the topic. Just tuck them away in DHTML
Drop-downs. This way they will be hidden until the user clicks the
drop down link.
2. You could go behind RoboHelp's back and rename all the
topics with the images from .HTM extension to .XHTM. At this point,
RoboHelp won't see them and will consider them to be broken links.
You would then return to RoboHelp and carefully add each new .XHTM
topic to your list of Baggage Files. Then you would amend all the
links to point at the new topics. After that, recompile/regenerate
and you should be set.
Cheers... Rick