I am working in Win10 and going through "Dynamic Web Development with Seaside" book using Pharo "Seaside-3.1-portable.app". In Chapter 20.1.2, when I attempt to add the method below to the ToDoListView class, the classes PTDeploymentLibrary and SUDeploymentLibrary are not found in the image. I tried using the PTDevelopmentLibrary and SUDevelopmentLibrary classes, but the Scriptaculous effects which should be available in later exercises does not show up. Am I way behind the web development curve in using Scriptaculous and if so what web development environment should I be looking at? ToDoListView class>>initialize (WAAdmin register: self asApplicationAt: 'todo') addLibrary: PTDeploymentLibrary; addLibrary: SUDeploymentLibrary William Kohl