pkg2ng not making pkg.bak dir after upgrade

[Zoran Kolic]

After a while, I found that I messed something.
Upgraded the system from 9.1 to 9.2 with freebsd-update.
Installed pkg. Used pkg2ng. It did some work, but made
no /var/db/pkg.bak directory at all. Now, I could see
either pkg version output just as pkg_version. So, it
was not converted to pkg system.
Update and upgrade processes went fine to my tired eyes.
But, it was not fine, since I still use old packages,
with downloaded txz files in /var/cache/pkg/All.

> pkg info pkg
pkg-1.1.4_7

> uname -a
FreeBSD faust 9.2-RELEASE FreeBSD 9.2-RELEASE #3: Sat Oct 12 17:30:28 CEST 2013     root at faust:/usr/obj/usr/src/sys/NEWKERN  amd64

> whereis pkg2ng
pkg2ng: /usr/local/sbin/pkg2ng

I use tcsh, if it matters.
Any idea how to go further. I could remove all apps and
install from the start, but it is interesting to find the
solution.
Best regards

                                    Zoran