Use http source instead of rtmp source

Hi all,

I have this standard embed code to play my video:

<object height="409" width="600">
<param name="movie" value="http://fpdownload.adobe.com/strobe/FlashMediaPlayback.swf" />
<param name="flashvars" value="src=rtmp://my-server/vod/flv:my-video" />
<param name="allowFullScreen" value="true" />
<param name="allowscriptaccess" value="always" />
<embed allowfullscreen="true" allowscriptaccess="always"
flashvars="src=rtmp://my-server/vod/flv:my-video" height="409"
src="http://fpdownload.adobe.com/strobe/FlashMediaPlayback.swf" type="application/x-shockwave-flash"
width="600">
</embed>
</object>

I try to use http protocol instead of rtmp protocol as:

src=http://my-server/vod/flv:my-video

but it doesn't work!

How can i use http instead of rtmp on FMS?

Thanks in advance.