As of February 8, 2011 Flash Player 9 is no longer supported. Adobe will no longer provide security updates for Flash Player 9 and recommends that all Flash Player users on supported systems upgrade to the most recent version of the player through the Flash Player Download Center.
The latest version of Adobe Flash player is 10.2.152.26
New versions can be obtained from http://get.adobe.com/flashplayer
It is advisable to use the UNinstaller to remove previous versions before installing the new version: http://download.macromedia.com/pub/flashplayer/current/uninstall_flash_player.exe
Note: There us an ActiveX version for IE users, and a separate plug-in version for users of alternative browsers (Mozilla Firefox, Opera, etc.).