To insert an image(s) to your web page, you will need to be in the editing mode of the page.
Place your cursor where you wish the image to go, select the Insert menu > selectImage.
You can insert an image from your computer...
or, link to a photo from the web...
Each time you insert an image, you will be able to do some "adjusting" with the tools that appear:
You will be able to "adjust" the Alignment, Size, and turn Wrap on or off, as well as remove the image.
Here is a short video that will review the Inserting an Image process