search this forum for flashplayer 9 beta. I have it working (FC6, Firefox 1.5, i686).
You have to install flash-plugin (don't know which repo), then may need to update the
libflashplayer.so from the 9 beta.
you dont need a repo for the flash plugin. just download the beta flash9 from the website and uncompress. then drop it into the mozilla plugins folder ( /usr/lib/mozilla/plugins i think ). there maybe even a RPM on the adobe flash website.