I love it .. an easy solution! thank goodness for that I've been tearing my hair out here!
I am building this in Flash 8 professional using AS2. I'm getting better - and the more I discover the more excited I am getting, but my knowledge of both this and XML is at best at 'novice'!
Flash actually needs to do two things with this URL info .. in no particular order, it needs to be able to append the URL to the core url already in the action script .. but it also needs to recognise there is in fact content in that url node and if empty do nothing - but if content does exists it needs to be able to tell the movieclip for that particular country to change to visible. .. the moveclip then appears with the url all ready to redirect the user to the full url.
hope that hasn't complicated the easy solution too much!