Graham bemethavinci well most of it is there now
all you need to do is set up the files and add the code from htmlcomment box (you have to get it from their site as it uses your google login)
Which site is this going on ? I can set up the files and folders for you if it is easier
It is possible to make a simpler version with just a collection of complete pages and a filelist but this method allows you to change common content without having to edit every single post page