The latest update (mini-library) is aafs2010.zip.
The latest full library is aafsdrug.zip
Note: all entries in aafs2010.zip are included in the main library aafsdrug.l.
Make a directory called "aafs2010.l" or any other legal DOS name, ending in ".l" (the letter "L" for library).
Using the utility pkunzip.exe, extract all of the files into the subdirectory aafs2010.l, or whatever you called it. (If you do not have "pkunzip.exe", you can download it via the pkzip home page, or via dozens of other sites on the Internet).
Select the newly formed library as you would any other, in HP ChemStation's DataAnalysis. You can browse the library by using Parametric Retrieval.
The instructions are also contained in the readme.txt file, within the zip file.