What version of Videopad is being run? Look at the bottom-left corner of the window. What's the format of those images?
Take a minute to share them here or privately and someone will come up with an answer.
Upload the file/s to a free server, such as Google Drive or MS OneDrive, get a shared (public) link, copy the link and paste it here or to me in a Private Message via the mail envelope in the top-right corner of this forum. When using Google Drive, if necessary change "restricted" to "anyone with link can view."