Okay, first thing's first... I can't get the image to show up, and I know I'm using the correct code.
I had this problem, you can't just link to the results image from the political compass site. What you need to do, as I discovered peeking at Dr. A's post, is link to the img it produces for facebook, which has an ending after The Political Compass of the format - "/facebook/pcgraphpng.php?ec=-7.002&soc=-6.62".
if you edit the link manually you can just plug in the right values, at the moment the link has 0 for your libertarian/authoritarian axes which corresponds to the image.