The plugin is running on WP2.8.6 and it's behaving well (just installed it). Because I am including a PHP script from another subdomain I need to use IFRAME because I need to write the script path with http:// !!
It would be great if I could run it with a simple
[include file=http://otherdomain.com/script.php?lng=en]
Just a request... Thanks for your plugin.