Hi im also having the same problem….
i’ve added a custom field to a category section and the field shows up in admin and i add data to the field but its not showing on front end. I’ve used all of these examples to make it work
here is an image of the set up in the admin http://rdesignworks.edesignerz.com/backend.jpg
here is the code im trying
http://rdesignworks.edesignerz.com/code.jpg