PHP5 DOM Problem

Hi there. I don't kno id this is the correct place to post but... I am using the PHP5 DOM to make up RSS Feeds .. A Problem I have is I want to make this up for itunes.. <?xml version="1.0" encoding="UTF-8"?> <rss version="2.00" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd"> .... etc.. I use.. $p_dom = new DOMDocument('1.0','UTF-8'); $p_rss = $p_dom->createElement('rss'); $p_rss->setAttribute('version', '2.00'); $p_rss->setAttribute('xmlns:itunes','http://www.itunes.com/dtds/podcast-1.0.dtd'); $p_dom->appendChild($p_rss); which is working for me.. Debian (PHP 5.2.6-2+b1) but doesn't work on some other people with other versions of php5 ( I don't know yet which version they have) they only get <?xml version="1.0" encoding="UTF-8"?> <rss version="2.00"> So the name space is missing.. So I looked up http://nz2.php.net/manual/en/domelement.setattribute.php and it says the "correct" way is to use createElementNS.. but I have tried and tried and I cannot get it to make up what I want it to do. can someone help? I also want to make something like <?xml version="1.0" encoding="UTF-8"?> <rss version="0.91" xmlns:media="http://search.yahoo.com/mrss/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:gm="http://www.google.com/schemas/gm/1.1" xmlns:av="http://www.searchvideo.com/schemas/av/1.0" xmlns:dc="http://purl.org/dc/elements/1.1/"> for mediarss feeds + other types . but I can't seem to be able to use CreateElementNS to make this up either Can someone help??