Why does ODT import ignore some images?
When some images are pasted into OpenDocument files (instead of inserting from a file), or the file is converted from another format, OpenOffice saves the images in an obscure and little-used format (SVM, or StarView Metafile). Unfortunately Jutoh (and all image conversion applications that I know of) cannot convert this file, and so there will be a warning message during import. The workaround is to paste the images into Jutoh after import. Also you may have greater success if you insert the images into OpenDocument from files instead pasting from the clipboard.