diff --git a/bbs/gcaptcha/down.php b/bbs/gcaptcha/down.php
index 7bb655d24..b7057153e 100644
--- a/bbs/gcaptcha/down.php
+++ b/bbs/gcaptcha/down.php
@@ -2,8 +2,7 @@
 include_once('./_common.php');
 
 $file = addslashes($_GET['file']);
-$captcha_path = mk_subdir($g4['cache_captcha_dir']);
-$filepath = $captcha_path.'/'.$file;
+$filepath = $g4['cache_captcha_path'].'/'.$file;
 $original = "number.wav";
 
 if(preg_match("/msie/i", $_SERVER['HTTP_USER_AGENT']) && preg_match("/5\.5/", $_SERVER['HTTP_USER_AGENT'])) {
diff --git a/bbs/gcaptcha/gcaptcha.lib.php b/bbs/gcaptcha/gcaptcha.lib.php
index 8b33aa866..ef7ae2813 100644
--- a/bbs/gcaptcha/gcaptcha.lib.php
+++ b/bbs/gcaptcha/gcaptcha.lib.php
@@ -246,8 +246,6 @@ function join_wavs($wavs)
 function captcha_file($extension='.png')
 {
     global $g4;
-    mk_subdir($g4['cache_dir']);
-    $captcha_path = mk_subdir($g4['cache_captcha_dir']);
-    return $captcha_path.'/'.abs_ip2long().'_'.$_COOKIE['PHPSESSID'].$extension;
+    return $g4['cache_captcha_path'].'/'.abs_ip2long().'_'.$_COOKIE['PHPSESSID'].$extension;
 }
 ?>
diff --git a/extend/g4s.extend.php b/extend/g4s.extend.php
index e5a09f060..fcf8dc463 100644
--- a/extend/g4s.extend.php
+++ b/extend/g4s.extend.php
@@ -12,16 +12,23 @@ if ($g4['https_url']) {
     $g4['https_bbs_url'] = $g4['https_url'].'/'.$g4['bbs'];
 }
 
-$g4['data_dir']         = 'data';
-$g4['data_url']         = $g4['url'].'/'.$g4['data_dir'];
-$g4['data_path']        = $g4['path'].'/'.$g4['data_dir'];
+$g4['extend_dir']   = 'extend';
+$g4['extend_path']  = $g4['path'].'/'.$g4['extend_dir'];
 
-$g4['cache_dir']        = 'cache';
-$g4['cache_path']       = $g4['data_path'].'/'.$g4['cache_dir'];
+$g4['data_dir']     = 'data';
+$g4['data_url']     = $g4['url'].'/'.$g4['data_dir'];
+$g4['data_path']    = $g4['path'].'/'.$g4['data_dir'];
 
-$g4['cache_latest_dir'] = $g4['cache_dir'].'/latest';
-$g4['cache_member_dir'] = $g4['cache_dir'].'/member';
-$g4['cache_captcha_dir']= $g4['cache_dir'].'/captcha';
+$g4['cache_dir']    = 'cache';
+$g4['cache_path']   = $g4['data_path'].'/'.$g4['cache_dir'];
+
+$g4['cache_latest_dir']     = $g4['cache_dir'].'/latest';
+$g4['cache_member_dir']     = $g4['cache_dir'].'/member';
+$g4['cache_captcha_dir']    = $g4['cache_dir'].'/captcha';
+
+$g4['cache_latest_path']    = $g4['data_path'].'/'.$g4['cache_latest_dir'];
+$g4['cache_member_path']    = $g4['data_path'].'/'.$g4['cache_member_dir'];
+$g4['cache_captcha_path']   = $g4['data_path'].'/'.$g4['cache_captcha_dir'];
 
 // g4s 기본 DHTML EDITOR
 if (!defined('G4_EDITOR')) define('G4_EDITOR', 0);
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 659c8e4e3..e894a7d4e 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -1620,18 +1620,6 @@ function is_checked($field)
 }
 
 
-function mk_subdir($subdir)
-{
-    global $g4;
-    $data_subpath = $g4['path_path'].'/'.$subdir;
-    if (!is_dir($data_subpath)) {
-        @mkdir($data_subpath, 0707);
-        @chmod($data_subpath, 0707);
-    }
-    return $data_subpath;
-}
-
-
 function abs_ip2long($ip='')
 {
     $ip = $ip ? $ip : $_SERVER['REMOTE_ADDR'];
diff --git a/lib/latest.lib.php b/lib/latest.lib.php
index e312a1d2c..663a87775 100644
--- a/lib/latest.lib.php
+++ b/lib/latest.lib.php
@@ -6,8 +6,44 @@ function latest($skin_dir='', $bo_table, $rows=10, $subject_len=40, $options='')
 {
     global $g4;
 
-    if (!$skin_dir)
-        $skin_dir = 'basic';
+    if (!$skin_dir) $skin_dir = 'basic';
+    $latest_skin_path = skin_path().'/latest/'.$skin_dir;
+
+    $cache_file = $g4['cache_latest_path']."/{$bo_table}_{$skin_dir}_{$rows}_{$subject_len}.php";
+    if (!file_exists($cache_file)) {
+        $list = array();
+
+        $sql = " select * from $g4[board_table] where bo_table = '$bo_table'";
+        $board = sql_fetch($sql);
+
+        $tmp_write_table = $g4['write_prefix'] . $bo_table; // 게시판 테이블 전체이름
+        $sql = " select wr_id, ca_name, wr_subject, wr_comment, wr_hit, wr_datetime, wr_name, mb_id, wr_singo, wr_good, wr_nogood from $tmp_write_table where wr_is_comment = 0 ";
+        if ($ca_name) {
+            $sql .= " and ca_name in ('', '공지', '$ca_name') ";
+        }
+        $sql .= " order by wr_num limit 0, $rows ";
+        $result = sql_query($sql);
+        for ($i=0; $row = sql_fetch_array($result); $i++) {
+            $list[$i] = get_list($row, $board, $latest_skin_path, $subject_len);
+        }
+
+        $handle = fopen($cache_file, "w");
+        $cache_content = "<?php\nif (!defined('_GNUBOARD_')) exit;\n//".get_text($board['bo_subject'])." 최신글\n\$list = ".var_export($list, true)."?>";
+        //$cache_content = all_trim($cache_content);
+        fwrite($handle, $cache_content);
+        fclose($handle);
+    } 
+
+    include_once($cache_file);
+
+    ob_start();
+    include "$latest_skin_path/latest.skin.php";
+    $content = ob_get_contents();
+    ob_end_clean();
+
+    return $content;
+
+    /*
     $latest_skin_path = skin_path().'/latest/'.$skin_dir;
 
     $list = array();
@@ -30,5 +66,6 @@ function latest($skin_dir='', $bo_table, $rows=10, $subject_len=40, $options='')
     ob_end_clean();
 
     return $content;
+    */
 }
 ?>
\ No newline at end of file