Blogs MU Update Changes Home Page???

With the recent Blogs MU Theme updates, it has caused my Home Page to change for visitors who are logged in versus logged out. See attached jpgs.

Notice the Navigation Bar is different which makes it confusing for my visitors.

Here is the URL for a closer look: http://neighborhoodunited.org

Don't know why it did this...I didn't make any changes.

Please help.

Thanks,

Jeff