The Blogpart could not find the lists needed:
If you are Administrator of this site you can create the lists needed to support the Blogpart by following the link below. If any lists with the same names exists on this site they will be deleted.
If you have anable anonymous access on your virtual server, the Blogpart will enable anonymous access on the lists created and ’Add Items’-rights on the Comments for anonymous.
Create lists, will delete existing list named Blog, Comments and Categories!!!