including an existing flv from another server

Hi,
I want to use Flashvideo to stream a flv from a rapidshare premium server (generally works with Wijering Flash Player - i tried^^). To do that i decided to change the youtube link. So when you type [video:id=directrapidsharelinktoa.flv] it embeds the video. I changed the youtube tpl thing with the following:

<param name="movie" value="http://www.myhomepage.com/player.swf" />
<param name="FlashVars" value="file=<?php print $videoid; ?>" />

Now when i try adding a video i get "filetype not supported". I looked into the flashvideo.module where the filetypes are defined. I guess i have to change the [youtube, 0, youtube] part, but i dont know into what. I dont even know if iam doing the right thing, as i havent got coding experience. A fingerpoint in some kind of direction would be really nice :)