I am running Seam 2.1.1 GA and Websphere 6.1. I have followed the instructions in Chapter 38. Seam on IBM's Websphere. I have triple checked that I have done everything. I originally developed this under JBoss AS 4.2.3 GA and it works perfectly!
My login screen comes up, but my authenticate method is never called. I have a Help page that doesn't require authentication and that works fine.
Here is the relevant pieces of my component.xml file: