The files are now available on the org as well, here's a link for lazy people You are looking for the files by Bushface, they are easy enough to find.

Seljuk Sinan - Thanks for filling in, you can keep the files up if you wish or take them down to save space.

arrrse - Originally the files were divided up by type and game, so you had all three tech trees for MTW in one file, the MTW map in another, the VI tech tree and map in a third and so on. This is because some people only want a specific file as they have already got the maps etc from the earlier release (the one advertised in the Entrance Hall several months ago, it's also in my beginners guide.) and only want the new bits. Having them split up also allows the pack to be sent over several emails to fit in smaller in boxes when required (you need to ask if you want it split up, otherwise you get the whole lot).