hey hoi,
thanks for notifying. unfortunately these docs are pretty old (as you can see in the sidebar 2011/2012) and the download section was moved.
in general you can access all downloads here: http://stackideas.com/downloads and then filter through to the part you're interested in.

for the latest blogs module that you're referring to here you can find it at: http://stackideas.com/downloads/modules

hope that helps and have a nice day