Of Course if you don't want to be bothered downloading 8MB
you don't need to

The only difference between the "official" patch and the beta is the documentation,

So if you have the "Beta" release all you need is the documentation.
download the documentation here,
http://www.totalwar.com/Downloads/MTW/patches/Loc.zip
95k or 8.4MB it's your choice.
barocca