Here are some diagrams from the BluePrints book "Sample Application Design and Implementation", and my version of them.
Activity diagram for User Signon and Registration
Original
My UML 2.0 version
Layered view
PetStore_Sample_Figure11.PNG
Module view
PetStore_Sample_Figure12.PNG
WAF information flow view
PetStore_Sample_Figure13.PNG
WAF Runtime view
PetStore_Sample_Figure14.PNG
Activity diagram for Sign-on filter
PetStore_Sample_Figure16.PNG
Runtime view of the web app
PetStore_Sample_Figure17.PNG