RT,
You are almost there. That link is to your login screen.
Try to display the picture which is on your host site, not the version which exists on your home computer.
Draw the cursor across the URL at the top of your screen, thereby selecting it. The URL is the http://.... stuff, which is the link to your picture. Then, say Edit Copy.
Then, Paste the URL into your post while you are Editing the post. Then, paste the IMG tags on both ends of your URL.
All done.
We have described a Copy/Paste operation. The Ctrl key can be used as a shortcut, by holding it down, and pushing another key.
Cntl C is Copy.
Cntl V is Paste.
Bill