A doubt about instructions for installing the package on amd64

[Michelasso <qzerty at gmail dot com>]

While trying to solve the problem I mention in the other thread, I had
a doubt about this sentence in the notes for amd64 in Favio's page:
"This means that the fglrx driver requires a link from
/usr/X11R6/lib64 to lib because it is compiled for a "hybrid"(???)
system that puts 64-bit libraries into /.../lib64"

Well, I haven't understood exactly what it means.
As an example: I was thinking that maybe fglrx acceleration doesn't
work with the new version (8.16.20) of the driver because I forgot
this step; so I have copied everything thta I have in /usr/X11R6/lib64
over the corresponding files in /usr/X11R6/lib (that's what I have
understood from the previous sentence). Then I restarted xorg but I
noticed that I have a mismatch between the kernel fglrx module
(compiled for 8.16.20) and the driver, as if copying those files have
returned me back to the previous version of the driver.
So I examined the contents of the driver package with dpkg-deb
--contents fglrx-driver_8.16.20-1_amd64.deb and I have noticed that
the package install its files under /usr/X11R6/lib; so I was
completely wrong and the correct thing to do is to remove the existing
directory /usr/X11R6/lib64/ (present on my system I don't know why at
this point) and to replace it with a symlink:

ln -s /usr/X11R6/lib /usr/X11R6/lib64/ 

Is this correct?