Latest Flash Player and 3D Effects

I want to make sure whomever goes to my site has the latest flash player as the site contains 3D elements produced in CS4.

I’ve always gone by the fact that if you have the latest Flash Player version listed in your embed code, it will prompt the user to download the latest flash player, correct?

<div align="center">
  <script type="text/javascript">
AC_FL_RunContent( 'codebase','[COLOR="Red"]10,0,22,87[/COLOR]','width','920','height','580','src','jmMain','quality','high','pluginspage','','movie','jmMain' ); //end AC code
</script><noscript><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="[COLOR="red"]10,0,22,87[/COLOR]" width="920" height="580">
    <param name="movie" value="jmMain.swf" />
    <param name="quality" value="high" />
    <embed src="jmMain.swf" quality="high" pluginspage="" type="application/x-shockwave-flash" width="920" height="580"></embed>

Now, if I have 3D effects from CS4, and they view my site using Flash Player 9, what will happen?