My wonderful wonderful dad has been hard at work.
With me as his sidekick (I can see the evidence on my hands, and feel it in my back - I'm so soft!), and the kids getting under our feet, we managed to get the concrete floor laid, the insulation all in, and the particle board all down - which all adds up to one finished floor!
The kids were so good and patient (most of the time) and are absolutely loving having all the space to zoom around on - oh yes, there has been a lot of zooming around going on here. In fact, you know what I hear right now, the sound of zooming, and giggling, and shrieking with glee.