Adobe® Flash® Player is a lightweight browser plug-in and rich Internet application runtime that delivers consistent and engaging user experiences, stunning audio/video playback, and exciting gameplay. Adobe's choices for Flash versions do not include 10.6.8 - the lowest it goes is 10.10-10.13. I desperately need a source for Flash Player that will work with Snow Leopard - I don't understand why Adobe leaves so many of us in the dust.
Two bugs, one affecting Apple's Mac platform and another attacking Microsoft's Windows, exploit certain Flash player vulnerabilities to install malware onto users' systems, reports ArsTechnica. While users of other operating systems like Linux have yet to report attacks, Adobe's advisory notes the exploit affects all platforms.
Designated as CVE-2013-0634, the first vulnerability targets the Safari and Firefox Web browsers running on OS X, and is also being used as a trojan to deploy Microsoft Word documents containing malware. For Mac users, the flaw affects Adobe Flash Player version 11.5.502.146 or earlier.
On March 1, 2013 Apple again blocked Flash Player for Lion and Mountain Lion:

The Adobe Flash patch can be found on Adobe’s website, and users can visit this page to check if their software is the most curent version.
Adobe Flash Player Update For Vista
You should uninstall any previous version first, and repair permissions after installing the new version.
If you still get a ‘plug-ins blocked’ message:
If you're using an out-of-date version of the Adobe Flash Player plug-in, you may see the message “Blocked plug-in,” “Flash Security Alert,” or “Flash out-of-date” when attempting to view Flash content in Safari.
Clicking the indicator displays a message that Adobe Flash Player is out of date:
To continue viewing Flash content, update to a later version of Adobe Flash Player:
- Click the Download Flash button. Safari opens the Adobe Flash Player page on the Adobe website.
- Follow the instructions on the Adobe website to download and install the latest version of the plug-in.
Adobe Flash Player Update For Mac
If you need to use an older version of Flash Player, you can use Internet plug-in management in Safari to run the plug-in in unsafe mode for websites that you trust.
Contact Adobe if you need help downloading, installing, or using Adobe Flash Player.