> As mentioned in my original posting, I have tried some of 
> these extensions, and obviously there's some basics I'm missing. 

> 	xmlns:saxon="http://saxon.sf.net" 
> 
> Kind of strange that Saxon does not support the Saxon extensions?

You got the namespace wrong, it is xmlns:saxon="http://saxon.sf.net/" 

Michael Kay
http://www.saxonica.com/