One of my customers found the Simple Image Widget and started using it to add images to the sidebar of his blog. It works like a charm!
The first step is to install the plugin. Then go to your dashboard and click on “Media” to add a photo to your blog.
Once you’ve added the image, edit it so you can see its URL. That’s where the image is located in your WordPress system.
Then go to Appearance > Widgets to add an instance of the Simple Image Widget to your sidebar. You’ll enter in the URL of the image that you uploaded. If you want the image to link to somewhere (like Facebook or your eBay store) then you’ll add that URL to the widget as well.