[ANN] UI for managing Pier users

Howdy, I have released the first version of a Web-based UI for creating, editing, and removing user from Pier (based on Lukas Renggli's Pier- Security package.) The project is available at: http://www.squeaksource.com/PierSecurityManager.html This is my first Smalltalk program and I'd welcome feedback on the code. Specifically, I'm coming to Smalltalk via Ruby, Java, C++, and Objective-C. I am very sure I haven't found my "Smalltalk voice" and help in improving my Smalltalk idioms would be greatly appreciated. Also, I am looking for a way to write tests for the code. Because much of the code is based on Seaside/Magritte callbacks, it seems difficult to test the code without being able to simulate these calls. Any pointers to testing would be appreciated. Thanks, David