You should clear the log first, those errors about missing stored procs were from during the installation, they didn't exist at first.
In your error message I see "http://mysite.com/blog11rss.aspx", when I paste that url into the browser it gives me a 404 error. So it seems like it can't resolve that host name to a real machine. Have you tried consuming any public feeds yet?
Hope it helps,
Joe