Trouble Uploading images from my website

Newbie here and a novice at web design. Have made my own website using Publisher and used graphics and text from an ebook I have downloaded/purchased. Website looks great when in website preview but when uploading to ftp and then checking if website looks ok on internet - can see that my website page only has text and blank boxes with red xxxxx's where pictures should be. What have I overlooked can anyone help?

Please add your license key id to the profile in the forum or post it here (id only).