Код:
<div align="center"><object type="application/x-shockwave-flash" data="http://www.wmkopilka.ru/images/clock.swf" width="150" height="150"><param name="bgcolor" value="#ffffff" />
<param name="allowFullScreen" value="true" />
<param name="allowScriptAccess" value="always" />
<param name="wmode" value="transparent" />
<param name="movie" value="http://site.ru/uppod.swf" />
<param name="flashvars" value="st=;file=" /></object><div/>

Обозначения:
width="ширина" height="высота"