In English:
FlashBlocker for Opera 9 version.

Makes sure you have assigned a userJS folder:
ctrl+F12>advanced>content>JavaScript options>user JavaScript files
UserCSS works by Opera 9 version's default settings.

Installation:
Close Opera, unzip 'FlashBlocker.zip' to some place on your harddisk.
Copy FlashBlocker.css to your user styles folder like c:\...\Opera\Opera 9\profile\styles\user (looking path in Help->About Opera)
Copy FlashBlocker.js (and FlashBlocker-white-list.js, if needed) to your UserJS folder like c:\...\Opera\Opera 9\profile\userjs (If you have no this folder, create a directory for storing User JavaScript files, for instance Opera 9\profile\userjs. Go to Tools -> Preferences -> Advanced -> Content -> JavaScript Options. Add the location of your newly created script directory to My JavaScript files.)
Restart Opera, select Flash blocker in menu View->Style and enjoy.
You may want to test Flash at: <url: http://www.macromedia.com/software/flash/about/ >

In Russian:
   Opera 9.

:
 FlashBlocker.css  "  CSS" (.   -> )      ->.
  FlashBlocker.js    UserJS.    ,    (, Opera 9\profile\userjs)
    ->->-> Javascript.

  :   ,      ,           .

,    FlashBlocker-white-list.js    UserJS       ,       (     ).
