[Overgrow]

It's just parsing the query string incorrectly, using the year instead of the forum. If you're having trouble like eva, change this:

            $forumID=$urlArray[3];
	$year=$urlArray[4];
	$month=$urlArray[5];
	$week=$urlArray[6];
	$threadID=$urlArray[7];

to this

            $a=0;

	while($urlArray[$a] != "archive") {
		$a++;
	}

	$forumID=$urlArray[($a+1)];
	$year=$urlArray[($a+2)];
	$month=$urlArray[($a+3)];
	$week=$urlArray[($a+4)];
	$threadID=$urlArray[($a+5)];