My old blog is http://www.carlosmiller.wordpress.com.
My new blog is http://www.carlosmiller.com.
Last month, I basically switched from wordpress.com to wordpress.org, then imported everything from the old blog to the new blog.
Because WordPress does not allow me to redirect traffic from my old blog to my new blog, I just put a final post up sending people to the new blog.
But if you google "carlos miller" the old blog ranks way higher than the new blog. The same thing goes if you google key words on any of the topics I had written about, even though those same posts are on my new blog.