Privacy Settings?

Seems I have a problem with privacy settings. Around 300 blogs on idwellness.org don't exist, well they do exist but are marked private. Is there anything I can do to get it to mark all the blogs as public automatically?

I have this plugin from Andrew but it only works on new blogs...

<?php

/*

Plugin Name: Privacy Fix

Plugin URI:

Description:

Author: Andrew Billits

Version: 1.0.0

Author URI:

*/

/*

Copyright 2007-2009 Incsub (http://incsub.com)

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License (Version 2 - GPLv2) as published by

the Free Software Foundation.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

*/

//------------------------------------------------------------------------//

//---Hook-----------------------------------------------------------------//

//------------------------------------------------------------------------//

add_action('wpmu_new_blog', 'privacy_fix', 1, 1);

//------------------------------------------------------------------------//

//---Functions------------------------------------------------------------//

//------------------------------------------------------------------------//

function privacy_fix($blog_ID) {

update_blog_status( $blog_ID, 'public', 1 );

}

//------------------------------------------------------------------------//

//---Output Functions-----------------------------------------------------//

//------------------------------------------------------------------------//

//------------------------------------------------------------------------//

//---Page Output Functions------------------------------------------------//

//------------------------------------------------------------------------//

?>