Dont worry about the pass to the other site, if I read the information right.. then the zips for that one and on Mithranmilk are the same, just with different passes.
The flash animation of the Hume was probably done by taking animation files, and then maybe using a model viewer for a cloudy background thing. Though, the image qaulity seems to be touched up.
Oh, I've had the pass for a while, its actually plastered on google somewhere if you type in the right things.