Click the box that says code and put the link for the ticker in there. Then click wherever you want it on your page and hit submit and the ticker will pop up. I didn't know what I was doing at first either.
The HTML code, right click on it and copy it then click the box that says code and paste it in the code box and hit add code. You have to click on your profile were ever you want it then hit add code. It should show up then.