If you have very many older applications you use and would like to continue to do so,
be sure the Snow Leopard installer option to install Rosetta (on initial SL install) is
checked so that will be installed; this helps some older applications to run in 10.6.
From the Apple servers, there is a final update 10.6.8 combo; run Software Update
from the installed and running Snow Leopard 10.6, in the computer, to get this Combo.
Or get it direct from Apple at the link below, so any further files for additional update to
Snow Leopard will follow more naturally, with OS X 10.6.8 already running after this:
Information and Download:
•Mac OS X 10.6.8 Update Combo v1.1
Post Date: Jul 25, 2011
File Size: 1.09 GB
After you've installed this update to Snow Leopard, and the computer has restarted
and running in OS X 10.6.8, you should run the Software Update again, to see
what else is available to update the remainder of the final Snow Leopard 10.6.8.
You could also find and run Disk Utility from the booted new OS X version and
check First Aid, where you can run 'Repair Disk Permissions' on the Mac HDD.
There also may be other items such as Adobe Flash player (get from Adobe) that
likely have an update version newer than the years-old 'shipped' version, here:
•Adobe Flash Player - Flash Player Help:
http://helpx.adobe.com/flash-player.html
If there are some issues, or to know of more info, there is this Flash Player page
where some of the items look like the above link to Help, but offers additional:
•Installation problems - Flash Player - Mac OS X:
http://helpx.adobe.com/flash-player/kb/installation-problems-flash-player-mac.ht ml
There are pages in Apple Support online that offer more information, user guides
and a rather large database that may be of help, with this OS X upgrade & more.
http://www.apple.com/support/snowleopard/
You may be able to get a later version of iLife and iWork, etc that are newer than
older versions of that software, but read up on iLife since some older versions
are more desired, and some have limits as to what OS X supports them.
Good luck & happy computing! 🙂