John,
Since IE7 blocks Flash as the code with ActiveX, the regular <ebmed> and other.. tags should be substituted with a JavaScript -based code, so your solution is OK until you meet IE7. Big companies, for instance, block EVERY ActiveX-related content and display something like this: Active Content Removed.

So, in this case is better using the AC_RunActiveContent.js in the header.
I have never tried it but it may work. Add the 'wmode' parameter to the script:

<script type="text/javascript">
AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0','width','200','heigh t','80','title','frontAdflash','src','flash/frontAd','quality','high','wmode','transparent','p luginspage','http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash','movi e','flash/frontAd' ); //end AC code
</script>

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