Documentation for v5

I recently upgraded from Parallels 4 to 5. I opted to get the downloaded upgrade to v5. After installation, it seems to have left the Parallels folder in my applications folder, but the documents contained in it are from v4. No documentation for v5 was installed. I see that one can obtain it from Parallels Help>Online documentation, but it sure would be nice if

1) it were automatically installed on the computer along with the application

and

2) the old version's folder was renamed to make it clear that the documents in it apply to v4 and not to v5.

I suspect that the reason the docs are not installed automatically is because they're easier to update online. More and more developers are doing that (at least Parallels makes them available for download as PDFs--some don't). That bugs me because sometimes our network goes down and I no longer have access to software documentation...