Theses, Books, Title pages ⇒ legrand-orange-book: no chapter image or space, roman numerals in toc

[kinseikun]

My last question for tonight--I promise!

At the end of my textbook, I want to have a list of image credits. I'd like it to be in the table of contents but with roman numerals, not page numbers, like an appendix. But making it an appendix does not seem to work.

Also it repeats the chapter image at the top, and if I do \usechapterimagefalse, it just looks the same, just with no picture. I tried making it \thispagestyle{plain} and it didn't change anything. I'd rather use all that space where the image would have been for the text of the document.

Attached is how it looks. Help!