Parsing dynamic XML sourced from a PHP file

Hi there,

I am having trouble parsing XML from a PHP file that essentially spits out XML.

http://www.universalmusic.net.au/whitelies/pull.php

When I copy the exact XML and save it as an XML file, it works?!

The error is reading, Error opening URL ‘http://www.universalmusic.net.au/whitelies/pull.php

Could this have something to do with the PHP file being online and the SWF running locally?

Please help.