CodeIgniter htaccess

RewriteCond %{HTTP_HOST} ^www.example.com.org$ [NC]
RewriteRule ^(.*)$ http://example.com.org/$1 [R=301,L]

RewriteCond %{HTTP_HOST} ^www.example.com.com$ [NC]
RewriteRule ^(.*)$ http://example.com.org/$1 [R=301,L]

RewriteCond %{HTTP_HOST} ^example.com.com$ [NC]
RewriteRule ^(.*)$ http://example.com.org/$1 [R=301,L]


RewriteCond $1 ^(boost|api|my\-footprint|my\_footprint|take\-action|take\_action|sign\-up|sign\_up|groups|cron|iphone|messages|share|twitter\_actions|facebook\_apps|sfp-admin|feed)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)$ version2/index.php [L]