My MBL recent visitors widget is not showing visitors!

Hi there, I just switched blogs and have installed a MBL recent visitors widget. But no visitors are showing up. At the very least, my own profile should be showing up. It showed up everytime I visited my old blog. The difference is: my last blog was a wordpress.com blog, and my new blog is self-hosted wordpress blog. Am I missing a step? Is placing the MBL widget via pasting the code into a text widget on the sidebar enough? Please help!

For reference, my new blog url is http://meetmojo.com/wordpress/

Thank you!