This is the case. I have a working script that extracts news items from an XML file and shows it on a web page. The only conditions now is that the XML file has to been stored on the same domain as the script is. This has to been changed so that an external file will be load.
Probably it's deadly simple.
For testing you can try to load this URL: [url removed, login to view]
The original files are added to this project.