Wordpress PostRank plugin not working

I installed the Wordpress plugin for PostRank and think I configured it with my hash code, but nothing is showing up. I have it in my left sidebar, as the 3rd widget. My blog is:
http://www.speedofcreativity.org/

I am using the following as my feed hash: 18555ae5921582028fe4ffc4db4420b5

When I found my feed/blog URL on PostRank it doesn't seem to show any posts at all, so I don't know what is going on.

2nd question: Is there a way for this feed to pull from feedburner?
http://feeds.feedburner.com/speedofcr...

Thanks!