I'm not sure I really understand what your problem is. Is it
that you have a CHM that has different icons for pages in the TOC?
If so, right click on one of the TOC topics with an inconsistent
icon. Select Properties and click on the Advanced tab. The "Image"
section is used to specify the icon used. The default value is
"Auto" which displays the standard icon but the "Mark As New"
option places a red star in the corner to signify a new topic. Is
the "Mark As New" option set or a different page icon set?