It is odd that there was nothing sent home for you to peruse. I am sure they have some method of documentation and programming as that is the basis of the curriculum. It is even harder now NOT to have some sort of documentation procedure in place with the new national standards and early years learning framework. I would suggest you request a meeting with the manager and get her to run you through the procedures that the educators have to do in regards to observation, documentation, planning and how they store it. You have every right to be shown through your child's file ( they might not call it a portfolio) and if they have nothing I would report them to your local department.