Okay. Upload the pic somewhere, like Photobucket or other free site for hosting photos. Right click on the picture, and then a little menu will pop up. Left-click Copy Link to copy the URL (the Web address, beginning with http://) to your computer's memory. Let's assume the URL is "http://www.whatever.com/whatever.jpg" (without the quotes).
Then, in your FR post, put something like this (I did something special so FR would print the command not obey it):
<img src="http://www.whatever.com/whatever.jpg">
You right click and Paste to get the URL between the quotes.
Does that help?