You should only need the last beta, not all of them.
Just unzip the file to your main EU2 directory, depending on the program you use, if the option to "keep directory structure" is available then select it. Also select Overwrite files, or answer yes when asked this question.
Just unzip the file to your main EU2 directory, depending on the program you use, if the option to "keep directory structure" is available then select it. Also select Overwrite files, or answer yes when asked this question.