Index: branches/version-2_5-dev/html/install/css/admin_contents.css
===================================================================
--- branches/version-2_5-dev/html/install/css/admin_contents.css	(revision 20566)
+++ branches/version-2_5-dev/html/install/css/admin_contents.css	(revision 20596)
@@ -362,4 +362,11 @@
 }
 
+/* EC-CUBEからのお知らせエリア
+----------------------------------------------- */
+
+#info-area{
+	margin-top:20px;
+    width: 558px;
+}
 
 /* フォーム
Index: branches/version-2_5-dev/html/install/index.php
===================================================================
--- branches/version-2_5-dev/html/install/index.php	(revision 20575)
+++ branches/version-2_5-dev/html/install/index.php	(revision 20596)
@@ -27,4 +27,5 @@
 require_once HTML_REALDIR . 'define.php';
 define('INSTALL_FUNCTION', true);
+define("INSTALL_INFO_URL", "http://www.ec-cube.net/install_info/index.php");
 require_once HTML_REALDIR . HTML2DATA_DIR . 'require_base.php';
 // ▲require.php 相当
@@ -584,4 +585,6 @@
     }
     $objPage->tpl_sslurl = $secure_url;
+	//EC-CUBEオフィシャルサイトからのお知らせURL
+    $objPage->install_info_url = INSTALL_INFO_URL;
     return $objPage;
 }
Index: branches/version-2_5-dev/html/install/templates/install_frame.tpl
===================================================================
--- branches/version-2_5-dev/html/install/templates/install_frame.tpl	(revision 20575)
+++ branches/version-2_5-dev/html/install/templates/install_frame.tpl	(revision 20596)
@@ -46,4 +46,11 @@
                     <!--{include file=$tpl_mainpage}-->
                 </div>
+                <!--{if strlen($install_info_url) != 0}-->
+                <div id="info-area">
+                            <iframe src="<!--{$install_info_url}-->" width="562" height="550" frameborder="no" scrolling="no">
+                                                         こちらはEC-CUBEからのお知らせです。この部分は iframe対応ブラウザでご覧下さい。
+                            </iframe>
+                 </div>
+                <!--{/if}-->
             </div>
         </div>