Hi All,
I found a simple solution to the problem in the original post. Instead of trying to choose one of the components that populate the drop-down menu, simply type in "Task Sequence Engine" or "Task Sequence Manager". I have successfully tested entering "Task Sequence Engine", so I assume it will also work for the manager.
The task sequence engine messages might be more than you need, since it will notify you of any step that fails - even if the task sequence continues to execute successfully (like when "ignore error" is checked on that step). The manager errors will only notify you if the task sequence totally dies.
Good luck all!