@#^$&% thing won't alphabetize...

Here is the code I'm using. It is supposed to display the contents of a folder in alphabetical order. But it's not alphabetizing.

<?php

$THUMBNAIL_FOLDER = "_thumbnails";

$HIDDEN_FILES[]	= "Thumbs.db";

$HIDDEN_FILES[] = "index.php";

$HIDDEN_FILES[] = $THUMBNAIL_FOLDER;

$THUMBNAIL_WIDTH = 200;

$THUMBNAIL_HEIGHT = 100;


// Image Output;

HandleImageOutput();


?>

<html>

<head>

<title>Index Of.</title>

<style>

body { background-color: #FCFFF0; font-size: 12px;}

A:link {text-decoration: none; color: blue}

A:visited {text-decoration: none; color: blue}

A:active {text-decoration: none; color: blue}

A:hover {text-decoration: underline; color: blue}


#images, #folders, #files { border: 1px solid #000000; background-color: #fff; margin: 50px; padding: 25px; }



DIV.image { width: <?php echo $THUMBNAIL_WIDTH; ?>; height: <?php echo $THUMBNAIL_HEIGHT; ?>; float: left; margin: 10px; text-align: center; border: 0px; }

IMG { border: 1px solid #444; background-color: #eee; }

</style>

</head>

<body>


<p><br><p><table width=100%><tr width=100%><td width=100%><h2>Title</h2>

<font face=tahoma>


<?php


$Browse = $_GET["b"] ;


if ( $Browse )

{

	$Browse .= "/";

}


// Stop them accessing higher level folders

if ( substr_count( $Browse, ".." ) > 0 || substr_count( $Browse, $THUMBNAIL_FOLDER ) > 0  )

{

	echo "You don't have permission to access this folder!";

	exit();

}


$DIR = "./" . $Browse;

$d = dir( $DIR );


while (false !== ($entry = $d->read())) 

{

	if ($entry[0] == '.') continue;

	if ( in_array( $entry, $HIDDEN_FILES) ) continue;


	// Don't list the folder if it has an index!

	if ($entry == 'index.html') exit();

	if ($entry == 'index.htm') exit();

	if ($entry == 'index.php') exit();

	if ($entry == 'index.asp') exit();

	

	if ( IsImage($entry) ) $images[] = array( filemtime( $DIR . "/" . $entry ), $entry );

	else if ( is_dir( $DIR . "/" . $entry ) ) $folders[] = array( filemtime( $DIR . "/" . $entry ), $entry );

	else $files[] = array( filemtime( $DIR . "/" . $entry ), $entry );


}



if ( count( $folders ) > 0 )

{

	echo "<div id=\"folders\">";


	arsort($folders);

	foreach ( $folders as $fn )

	{

		echo "<a href=\"$fn[1]/index.php\">$fn[1]</a><br>";

	}

	

	echo "</div>";

}


if ( count( $files ) > 0 )

{

	echo "<div id=\"files\">";


	arsort($files);

	foreach ( $files as $fn )

	{

		echo "<a href=\"$Browse$fn[1]\">$fn[1]</a><br>";

	}

	

	echo "</div>";

}


if ( count( $images ) > 0 )

{

	echo "<div id=\"images\"><div style=\"clear: both;\"></div>";


	arsort($images);

	foreach ( $images as $fn )

	{

		echo GetImageLink( $Browse . $fn[1], $fn[1] );

	}

	

	echo "<div style=\"clear: both;\"></div></div>";

}


?>



</body>

</html>


<?


 ////// FUNCTIONS /////

 

	function IsImage( $i )

	{

		$i = strtolower( $i );

		

		if ( substr_count( $i, ".jpg" ) > 0  ||

			 substr_count( $i, ".jpeg" ) > 0 ||

			 substr_count( $i, ".gif" ) > 0 ||

			 substr_count( $i, ".png" ) > 0 )

		{

			return true;

		}

		

		return false;

	}

	

	

	function GetImageLink( $imgfilename, $img )

	{

		global $THUMBNAIL_WIDTH, $THUMBNAIL_HEIGHT;

		return "<div class=\"image\"><a href=\"$imgfilename\"><img src=\"?img=$imgfilename\" width=$THUMBNAIL_WIDTH height=$THUMBNAIL_HEIGHT></a><br>$img</div>";

	}

	

	function HandleImageOutput()

	{

		global $THUMBNAIL_FOLDER, $THUMBNAIL_WIDTH, $THUMBNAIL_HEIGHT;

		

		$image = $_GET['img'];

		if (!$image) return;

		

		$imagecache = $THUMBNAIL_FOLDER . "/" . md5( $THUMBNAIL_WIDTH . $THUMBNAIL_HEIGHT . $image ) . ".jpg";

		

		$im = @imagecreatefromjpeg( $imagecache );

		if ( $im )

		{

			header("Content-type: image/jpg");

			imagejpeg($im);							

			imagedestroy($im);					

			exit();

		}

		

		$imgsize = getimagesize ( $image );

		

		switch ($imgsize[2]) 

		{

	  		case 1: // GIF

	    		$im    	= imagecreatefromgif( $image );

	    		break;

	   		case 2: // JPG

	    		$im    	= imagecreatefromjpeg( $image );

	    		break;

	   		case 3: // PNG

	    		$im    	= imagecreatefrompng( $image );

	    		break;

	    	default: // UNKNOWM!

				echo "Unknown Image!";

	    		exit();		

		}

		

		header("Content-type: image/jpg");


		$img_thumb = imagecreatetruecolor( $THUMBNAIL_WIDTH, $THUMBNAIL_HEIGHT );

		

		$dsth = ($THUMBNAIL_WIDTH / ImageSX($im)) * ImageSY($im);

		

		imagecopyresampled( $img_thumb, $im, 0,($THUMBNAIL_HEIGHT-$dsth)/2, 0,0, $THUMBNAIL_WIDTH, $dsth, ImageSX($im), ImageSY($im) );

		

		imagejpeg( $img_thumb );

		

		// This will fail if you haven't created and chmodded your thumbnails folder

		if ( $im && $img_thumb )

		{

			@imagejpeg( $img_thumb, $imagecache, 95 );

		}

		

		imagedestroy( $img_thumb );

		imagedestroy( $im );

		exit();

	}

?>