Craaack
A Naked image

Images should be place upon a page(s) using a H#/Div/P tag
You index (List of Illustrations or Figures section) locations on pages
Some things are best done with the editor (and a little TOC generator hand work)
If you choose to use the automated tool:
You should locate the Paragraph with the image (img) tag and make it a H# tag
if you add to the <h3
title="foo on a stick"> that will be the label in the TOC
The TOC edit (the white block with a T) allows lots of additional options, including a Move (this only affects the index, not the file view order)
eg.
List of illustrations
Map 1
Map 2
Foo on a Stick