Public Blogs Not Showing Up on "Visitor" (stranger) blog list page

Hi!

I have a question about the blogs page (the directory of blogs). When a visitor comes to the site -- not logged in -- and goes to the Blogs page, what they see is the following notice: "Sorry, there were no blogs found."

I have public subsites, I have buddypress, membership, and it seems to be working fine...

I am using buddypress, so I don't think I need the Blog Directory plugin (it would be redundant, right?)

Any thoughts on what I have set incorrectly?

Thanks!
Stephanie

http://memoirsite.com/blogs