UILoader parameters

Hi, anybody know of a way to pass flashvars parameters to a UILoaders swf.

i.e

<object align="middle" height="660" width="638">
<param name="movie" value="camplayer.swf">
<param name="flashVars" value="s=ZT0xJmk9NDYzMzA0MTEwJms9NnBiOEgmYT03MjExODU5X1VGdnhHJnU9ZXZlcnNvYXNo" />
<param name="wmode" value="transparent">
<param name="bgcolor" value="000000">
<param name="allowNetworking" value="all">
<param name="allowScriptAccess" value="always">
<embed src="camplayer.swf"
flashVars="s=ZT0xJmk9NDYzMzA0MTEwJms9NnBiOEgmYT03MjExODU5X1VGdnhHJnU9ZXZlcnNvYXNo"   wmode="transparent" type="application/x-shockwave-flash" allowScriptAccess="always" 
 allowNetworking="all" height="660" width="638">
</embed>
</object>

This is the player Im trying to play in a UILoader. How do I pass the flashvars to the swf in the UILoader

import fl.containers.UILoader;
 
var uiLoader:UILoader = new UILoader();
uiLoader.source = "http://cdn.smugmug.com/ria/ShizVidz-2008120101.swf";
uiLoader.move(100, 100);
/*need to add parameters here. Something like:
uiLoader.parameters.flashVars = 's=ZT0xJmk9NDYzMzA0MTEwJms9NnBiOEg";
*/
addChild(uiLoader);

Any help would really be appreciated

Cheers