küçük bir blog sistemi var. Mysql gerektirmeyen txtblog isminde. ama türkçe karakter sorunu var. aşağıda index kodları bulunuyor.

<?php
/***************************************************************************
*
* TxtBlog CMS
*
* Created by: Leo Kent, leo [dot] kent [at] gmail [dot] com
*
* TxtBlog CMS is released under the GNU Public License.
*
* You are free to use and modify TxtBlog CMS. All changes 
* must be uploaded to sourceforge.net/projects/txtblogcms/
* or emailed to leo [dot] kent [at] gmail [dot] com
*
* The TxtBlog CMS team request that footer linking back to
* the project Home Page should not be tampered with as a
* lot of work went into the project.
* Thanks
*
***************************************************************************/

define ("txtbloged", 1);
require_once("config.php");
require_once("includes/template_functions.php");
require_once("includes/functions.php");

// Which function is needed?
if ( isset($_GET['y']) && isset($_GET['m']) ) {

	showMonth();
	
} else {

	showIndex();

}

// The Functions

function showMonth() {
	global $config_date_format, $txtblog_body, $txtblog_title, $config_title;

	$txtblog_body = "";
	$txtblog_title = "$config_title - Archives";

	$year = $_GET['y'];
	$month = $_GET['m'];

	$files = findFiles("data/$year/$month");
	
	if (isset($files)) {
	foreach ($files as $file) {
				
		include ("data/$year/$month/$file");
		$date_array = explode(" ",$date);
		$date = date($config_date_format, mktime($date_array[0], $date_array[1], $date_array[2], $date_array[3], $date_array[4], $date_array[5]));
		$txtblog_body .= "<span class='blog_title'>$title</span><br>\n<span class='blog_date'>$date</span><br>\n".bb2html($blog)."<br>\n<hr size='1'>\n";

	}
	}
}

function showIndex() {
	global $txtblog_title, $txtblog_body, $config_date_format, $config_title;
	
	$txtblog_title = "$config_title - Home";
	$txtblog_body = "";
	
	// Search all the data dirs and make an array of all files	
	$years = findDirs("data");
	
	if (isset($years)) {
	foreach ($years as $year) {
	
		$months = findDirs("data/$year");
		
		if (isset($months)) {
		foreach ($months as $month) {
			
			$files = findFiles("data/$year/$month");
			
			// Vars for array shortening the array
			$file_count = count($files);
			$i = 0;
			$limit = 5;
			
			// Create a new array with a limited number of files
			while (($i < $limit) && ($file_count > $i)) {
			
				$new_array[] = $files[$i];
				$i++;
			
			}
			
			// For each file in the new array add it to the body
			if (isset($new_array)) {
				foreach ($new_array as $file) {
				
					include ("data/$year/$month/$file");
					$date_array = explode(" ",$date);
					$date = date($config_date_format, mktime($date_array[0], $date_array[1], $date_array[2], $date_array[3], $date_array[4], $date_array[5]));
					$txtblog_body .= "<span class='blog_title'>$title</span><br>\n<span class='blog_date'>$date</span><br>\n".bb2html($blog)."<br>\n<hr size='1'>\n";
				
				}
			}
	
		}
		}
	}
	}
}



// Include the template file
if (!file_exists("templates/".$config_template."/index.tpl")) { die("Template File Missing!"); }
require_once("templates/".$config_template."/index.tpl");

?>

bu sorunu nasıl çözerim?