Losing KML style attribute for features within nested folders

I have created several different styles and also also have also created a folder structure as I want some nested folders in the kml I am writing out. I notice when I route features to the nested folders, I lose the style I have set. Does anyone know why this might be? Another question I have is about ordering nested folders.. How can I make sure they are ordered in the way that I want? The folder names are numbers and so I want them ordered numerically, but I notice that the one folder I have set to visible, that one appears ont top of the other nested folders when it should appear below another one based on the name. Can I control this?