BuddyPress.org

It’s not the best thing to install WPMU in a subdirectory when you’re using a subdomain install.

Is there a valid reason why you’re not installing WPMU in the root?

Also because you installed WPMU in a subdirectory called “blogs”, it is conflicting with the BP_BLOGS_SLUG, which by default is also called “blogs”.

Either install WPMU in the root, or install WPMU in a different subdirectory name or try renaming your BP_BLOGS_SLUG to something else to “user-blogs”.

To rename the BP_BLOGS_SLUG to something else, add the following to wp-config.php:

define ( 'BP_BLOGS_SLUG', 'user-blogs' );

Re: the blog title, change that yourself by using this function:

echo get_bloginfo('name');