<object type="application/x-shockwave-flash" width="400" height="326" data="http://d.yimg.com/static.video.yahoo.com/yep/YV_YEP.swf?ver=2.2.40&id=10708610&vid=3940561&lang =en-us&intl=us&thumbUrl=http%3A//l.yimg.com/a/p/i/bcst/videosearch/6099/75238111.jpeg&embed=1">
<param name="movie" value="http://d.yimg.com/static.video.yahoo.com/yep/YV_YEP.swf?ver=2.2.40&id=10708610&vid=3940561&lang =en-us&intl=us&thumbUrl=http%3A//l.yimg.com/a/p/i/bcst/videosearch/6099/75238111.jpeg&embed=1" />
<param name="quality" value="high" />
<param name="allowFullScreen" value="true" />
<param name="flashvars" value="fs=true" />
</object>

Bu sekilde calismasi gerekiyor. src kodundan sonra & isareti ve flashvars kodunu ekliyorsun arkasina.