ive googled Flashvar and found some examples.
PHP Code:
<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
codebase="http://macromedia.com/cabs/swflash.cab#version=6,0,0,0"
ID=flaMovie WIDTH=250 HEIGHT=250>
<PARAM NAME=movie VALUE="flaMovie3.swf">
<PARAM NAME=FlashVars VALUE="<?php echo($QUERY_STRING);?>">
<PARAM NAME=quality VALUE=medium>
<PARAM NAME=bgcolor VALUE=#99CC33>
<EMBED src="flaMovie3.swf" FlashVars="<?php echo($QUERY_STRING);?>"
bgcolor=#99CC33 WIDTH=250 HEIGHT=250
TYPE="application/x-shockwave-flash">
</EMBED>
</OBJECT>
would that work with the link method you said?