In order to add pictures, you must first save it onto your image-saving/paint application (prefferably paint.net) as a file. If it is a normal image, save it to a PNG. file. Oncce that is done, go into editing mode on the page you would like to have the image added, and click the insert tab, and then click media. Once you have done that, click on the upload button and you will be brought to your saved images. Select the image you like, and it will appear above the upload button. Then, click 'Apply Changes' and the image will be on the page.
It seems like someone moved it into a gallery. I can move it again, but you can actually place the file yourself. All you have to do is click "Insert", then "Media". Once you have opened that window, click the search bar above the area where you upload a file and type in the name for the file you want to upload. Although this doesn't work with every image for some reason, it's a much more efficient way then reuploading the file or asking me to help. If there's anything else you need help with, let me know.