I'm trying to add an event when a stylesheet is saved so i created the below class. 

The contentservice event always fires but the stylesheet one never does. Any one have any ideas, using umbraco 6.1.1. Can't really find much info on the new contentservice api.

public class RegisterEvents : ApplicationEventHandler
    {
        protected override void ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
            FileService.SavedStylesheet += FileService_SavedStylesheet;
            ContentService.Saved += ContentService_Saved;
        }
        void FileService_SavedStylesheet(IFileService sender, Core.Events.SaveEventArgs<Core.Models.Stylesheet> e)
        {
            
        }
        void ContentService_Saved(IContentService sender, Core.Events.SaveEventArgs<Core.Models.IContent> e)
        {
            
        }
        
    }