Not sure how old your kid is, but I use the Zoodles parent dashboard for firefox. I have a 5 year old and 8 year old.
They also have their own profile on my computer which has limited ability to download/view content.
It's really too bad that the episodes seem to be getting worse and worse lately. I haven't read the books so I don't need to worry about that part, but man the latest ones have been real disppointments!
Thankfully that Mary-Ann character is gone though. I think I would have stopped watching if they hadn't knocked her off for good.