Thanks for your post. Here are some answers to your questions.
a) No, it hasn't been replaced. Projects are still authored in the FinalBuilder GUI, and then uploaded to the FB Server environment. It is also possible to link to project files directly if they are saved on the server's file system.
b) Yes.
c) Yes. The functionality is called a Time Trigger. Once you have added a new Server Project then you click "Edit Project", "Add Trigger" and choose the trigger type "Time Trigger."