First off - big thanks to Rob Buckley of "The Medium Is Not Enough" (Link to the left, dear reptiles*) for sharing this at his site. I don't think I would have seen it otherwise. (At the very least, none of the FB Who groups I belong to have showcased it yet.)
So it was written by kids, although I think the script was polished up by somebody. Still, there's a Zonk in this, an alteration to the timeline - the 10th incarnation of the Doctor originally lit the torch. But that must have been revised once the 11th incarnation of the Doctor rebooted the entire Universe with help from Amy Pond in "The Big Bang".
* Found it in "The History of Tom Jones, A Foundling" during my research today