Read XML file on server

Hi, I'm developing a little swf on my hhdd to execute without html, only the swf file.

I need to open and show the content of an xml file.

It works well with XML file on my local system, but it doesn't works with xml on internet.

Obviously is an XML file on my web space.

How can I access this file only for reading?

I've used the complete path to point it

http://www.mywebsite.com/directory/directory/file.xml

and the path is correct because if I use getURL the browser open the file correctly.

Thanks in advance.

Fabrizio.