Additional instructions for the above solution. With 2.0.x you need to disable generic pings by temporarily removing everything in Options->Writing->Update Services
I went and got it working with 2.0.1
http://trac.wordpress.org/attachment/ticket/2464/greymatter.2.php?format=raw
download it, rename it to ‘greymatter.php’ and put it in wp-admin/import
