For this tutorial, we will be using an HTML gadget for adding blinkies to the blog.
That will take you to a page that should look similar to the one below. Click on "add gadget."
Once you have clicked your gadget, you would have (or should have depending on the gadget) the option to name it.
If you are using a clickable photo, be sure you use the code exactly as I have, just changing the urls to whatever you need them to be.
If you are entering just a photo, you can use the second part of the code (minus the last < /a) or use the photo gadget.
Click save then arrange your gadgets as you would like.