Aside the error message requiring some tweaking "(due to wrong input of icao-codes or 'allow_url_fopen' is OFF [".ini_get('allow_url_fopen')."] and cURL not enabled [".function_exists('curl_init')."] on this server!)" ...which is just useful for new installations, but not nice to show on a production system (there are stations providing TAR or METAR only) - a good job.
Worth a reference: How do you put a module inside an article? http://docs.joomla.org/How_do_you_put_a_module_inside_an_article%3F - guess not all users are Joomla cracks here.