Random not working

I have the random script that the forums have provided me with. But i still get nothing lemme know if im doing anything wrong i did
if (pnModAvailable('WCUmafia'))
include("http://your.server/modules.php?op=modload&name=WCUmafia&file=index&include=block-random.php");
else
echo ' ';
That is what i added...