htaccess made me insane!!!

[eluser]CroNiX[/eluser]
probably not the problem, but you can remove these 4 lines as these directories now include their own htaccess which prevents direct access to them.

RewriteCond %{REQUEST_URI} ^system.*
RewriteRule ^(.*)$ /index.php?/$1 [L]
RewriteCond %{REQUEST_URI} ^application.*
RewriteRule ^(.*)$ /index.php?/$1 [L]


But I think the problem is you are setting AllowOverride None