As currently the IPS binary repositories http://pkg.openindiana.org/sfe and http://pkg.openindiana.org/sfe-encumbered do not receive updates, I would suggest you switch over to the packages hostes here: http://sfe.opencsw.org. Repositories for OI151_a8 and starting soon (August/September 2014) there will be a hipster based repository as well.

How to preserve installed packages list for later reference:
pkg list | grep "sfe" > pkg_list_grep_sfe

*save* your local modifications to the configuration files of the installed software.
Most of the config should live in /etc, so you need to search and preserve those
files, as it is not guarantieed that a packages doesn't simply overwrite your config
or data files. You might consider doing a ZFS snapshot of *all* relevant filesystems.

Then pkg uninstall (packages from the above list, you may want to script this)

List current publisher settings: pkg publisher
Then run "pkg unset-publisher " on the two SFE publishers.

Then follow the instructions here on the blog (see menu bar) and add the IPS repositiory matching you OS version.
(Note: OpenCSW is kindly providing hosting, the packages are purely from spec-files-extra
build recipes repository, the very same as OI used to compile their SFE packages.)

Run pkg install on the required packages and put back in your configuration files.

NOTE: You will most likely run into the situation where a package on the OI-SFE repo was
present, but is missing now on the sfe.opencsw.org repository. Don't hesitate to contact us and ask if a package can be added during the next few days, so you can get back into service.

A huge number of packages are drasticly updated in the version number on the sfe.opencsw.org repository, as unfortunately there is no current maintenance on the OI-SFE repositories.

Any questions? Contact me. You'll find the contacts everywhere. Best is IRC://irc.freenode.org channel #pkgbuild or email (use my sourceforge email address tom)

Have fun with SFE packages!