non ho capito ma per centrare un swf in una html basta questo

codice:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
	<title>societa</title>
	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
	<meta name="robots" content="ALL">
	<style type="text/css">
		html, body {
			width: 100%;
			height: 100%;
			}
		table {
			width: 100%;
			height: 100%;
		}
		
		
	</style>
</head>
<body>
	<table>
				<tr>
			<td align="center" valign="middle">
<object type="application/x-shockwave-flash" data="societa.swf" width="919" height="489">
<param name="movie" value="societa.swf" />
</object>
		  </td>
		</tr>
</table>

</body>
</html>