You can do it with a easy hack, but not automated. Only book by book.
Find the pagebreak, insert something else before. Do it by search and replace. If page break is like this:
{pagebreak code}
Replace it with this:
{image code}
{pagebreak code}
Easy to-do, not time consuming either. Like this:
<p class="indent">Paragraph before the break</p>
<div class="dis_img"><img alt="" src="images/random.jpg"/></div>
<p class="nonindent">After the break</p>
Here you would replace
<p class="nonindent"> with
<div class="dis_img"><img alt="" src="images/random.jpg"/></div>
<p class="nonindent">
Ok?