öyle bir yapılandırmada, onarcade sistemi çalışmaz.script'in altyapısı bu şekilde kodlanmış.bu nedenle link'te id'nin illa ki geçmesi gerekiyor.bence sen aşağıdaki gibi yap, en sağlıklısı bu olur.
siteadi.com/1/filmadi
bunun içinde aşağıdaki kodları kullanmalısın.
functions.php - gerekli alan

function fileurl($fileId,$fileTitle) {
	global $siteurl, $sefriendly;
	if ($sefriendly == '1') {
		$fileTitle = str_replace("A","a",$fileTitle);
		$fileTitle = str_replace("B","b",$fileTitle);
		$fileTitle = str_replace("C","c",$fileTitle);
		$fileTitle = str_replace("D","d",$fileTitle);
		$fileTitle = str_replace("E","e",$fileTitle);
		$fileTitle = str_replace("F","f",$fileTitle);
		$fileTitle = str_replace("G","g",$fileTitle);
		$fileTitle = str_replace("Ğ","g",$fileTitle);
		$fileTitle = str_replace("L","l",$fileTitle);
		$fileTitle = str_replace("M","m",$fileTitle);
		$fileTitle = str_replace("N","n",$fileTitle);
		$fileTitle = str_replace("W","w",$fileTitle);
		$fileTitle = str_replace("X","x",$fileTitle);
		$fileTitle = str_replace("Z","z",$fileTitle);
		$fileTitle = str_replace("Y","y",$fileTitle);
		$fileTitle = str_replace("I","i",$fileTitle);
		$fileTitle = str_replace("İ","i",$fileTitle);
		$fileTitle = str_replace("Ö","o",$fileTitle);
		$fileTitle = str_replace("O","o",$fileTitle);
		$fileTitle = str_replace("U","u",$fileTitle);
		$fileTitle = str_replace("Q","q",$fileTitle);
		$fileTitle = str_replace("R","r",$fileTitle);
		$fileTitle = str_replace("V","v",$fileTitle);
		$fileTitle = str_replace("S","s",$fileTitle);
		$fileTitle = str_replace("Ş","s",$fileTitle);
		$fileTitle = str_replace("H","h",$fileTitle);
		$fileTitle = str_replace("J","j",$fileTitle);
		$fileTitle = str_replace("K","k",$fileTitle);
		$fileTitle = str_replace("T","t",$fileTitle);
		$fileTitle = str_replace("Ç","c",$fileTitle);
		$fileTitle = str_replace("ç","c",$fileTitle);
		$fileTitle = str_replace("ğ","g",$fileTitle);
		$fileTitle = str_replace("ı","i",$fileTitle);
		$fileTitle = str_replace("ö","o",$fileTitle);
		$fileTitle = str_replace("ş","s",$fileTitle);
		$fileTitle = str_replace("ü","u",$fileTitle);
		$fileTitle = str_replace("/","-",$fileTitle);
		$fileTitle = str_replace("!","-",$fileTitle);
		$fileTitle = str_replace(":","-",$fileTitle);
		$fileTitle = str_replace(".","-",$fileTitle);
		$fileTitle = str_replace(";","-",$fileTitle);
		$fileTitle = str_replace(",","-",$fileTitle);
		$fileTitle = str_replace(" ","-",$fileTitle);
        $fileurl = $siteurl."/".$fileId."/".$fileTitle;
    } else {
	    $fileurl = $siteurl."/file.php?f=".$fileId;
    }
	return $fileurl;
}

.htaccess - gerekli alan

RewriteEngine on
RewriteRule ^([0-9]+)/([_A-Za-z0-9-]+) file.php?f=$1 [L]