Here is my first post and I will try to link an image to a word.   The word is children.    Let's see how it works.
First, I had to highlight the word in this text.  next, I opened another browser and googled images for the highlighted word.  I selected an image that I liked, copied the image address (copy shortcut), came back to the blog and clicked on "link".  This will open another box where you can paste in the address for the image.  Press OK and that is all there is to it.......simple, ha?