User doesn't find it and so reports it. Updater comes by and notices a NEW bug and reads it. Developer is notified and discovers he needs more information. User recieves an email requesting more information and returns to give it. Developer and User correspond via bugnotes until the information needed is retrieved.
Developer fixes bug and posts fix or workaround.
Navigation My biggest problem with every web based bugtracking package that I have come across is that the interfaces are inadequate. I want to browse recent, open bugs. All of the bugtrackers that I have seen up to this point made is difficult to do 2. Most of the time they use poor language like 'generate reports'. I find that bug IDs are the last thing I remember and I think it's an extremely poor choice to be presented to a new visitor.