I doubt anyone reading your post would have understood 'figures' to mean shape/inlineshape objects or that you essentially want to replace one image with another. I, for example, got the impression you might have been trying to replace 'Figure' Captions with images of those captions. Neither would anyone who hasn't used what you're calling a 'Word Cleaner tool' have any idea what the issue with that program is.

As for what you're trying to do, there really isn't any way for a macro to tell how an image in a document relates to an image on disk unless that image has been inserted as a link - and even then, it could only tell how the image in the document relates to the image it's linked to, not to any other image (though one might make inferences if both had the same name).

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]