Aki hay un ejemplo:
<html>
<head>
<title>EXYME</title>
</head>
<body>
<div align="center"> <-------abres el tag div
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="100%" height="100%">
<param name="movie" value="swf/plantilla.swf">
<param name="quality" value="high">
<param name="base" value="swf/"><param name="SCALE" value="exactfit">
<embed src="swf/plantilla.swf" width="100%" height="100%" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" base="swf/" scale="exactfit"></embed>
</object>
</div><---------- cierras el tag div
</body>
</html>
Saludos