That's why I suggested using FindChild, because then you don't have to recursively trundle through the hierarchy manually. If you really want/need to do it this way, JFK's entry in the code archives will show you the structure of your mesh :
http://www.blitzbasic.com/codearcs/codearcs.php?code=615
http://www.blitzbasic.com/codearcs/codearcs.php?code=615