XML menu

I downloaded the XML menu: http://www.kirupa.com/forum/showthread.php?t=43216 files. Fantastic! I have been following the string on loading files using this menu. I am rather confused about the action script needed to load jpg or swf or if you need any action script at all. I’m trying to figure out how to load my swf or jpg into a container in my main movie using this menu system.

Here is the AS posted that I do not understand where to enter

[left]
function executeAction(action)
{
loadMovie( action , _root.content);
}[/left]

Can you help?

Thanks in advance.