you're right Kees, its actually a little issue with the XML.idMap property on the default install of Flash 8.
I've made a blog post about it here: http://www.peterelst.com/blog/2005/12/19/flash-8-settimeout-and-xmlidmap/
Forgot to mention it in the article, but will update as soon as possible.
The easiest way to fix this is to use the following code:
var tmp = configXML["idMap"][param];
Hope this helps!
ah I see the problem, there's a typo in the article text -- the source files have the correct syntax.
I'll email you a fixed version of your code. Basically the XML instance should be defined outside the loadConfig function so that it is available for getConfigParam to use.
Thanks for letting me know about that problem!