Here is another long article dealing with Language Packs, there are written instructions on installation of course but video has been added too. Thus the link I have provided for your convenience.
The link opens a separate browser
http://windows7center.com/windows-7-tips/how-to-download-and-install-windows-7-beta-language-packs-mui-packs/
Hope this is helpful to many of our memebrs...javajolt