diff --git a/extensions/AssetsManager/AssetsManager.cpp b/extensions/AssetsManager/AssetsManager.cpp
index faf2dc63f6..86eebbb519 100644
--- a/extensions/AssetsManager/AssetsManager.cpp
+++ b/extensions/AssetsManager/AssetsManager.cpp
@@ -52,7 +52,6 @@ AssetsManager::AssetsManager()
 , _versionFileUrl("")
 , _version("")
 , _curl(NULL)
-, _delegate(NULL)
 {
     _storagePath = CCFileUtils::sharedFileUtils()->getWritablePath();
     checkStoragePath();
@@ -62,7 +61,6 @@ AssetsManager::AssetsManager(const char* packageUrl, const char* versionFileUrl)
 : _packageUrl(packageUrl)
 , _version("")
 , _versionFileUrl(versionFileUrl)
-, _delegate(NULL)
 , _curl(NULL)
 {
     _storagePath = CCFileUtils::sharedFileUtils()->getWritablePath();
@@ -74,7 +72,6 @@ AssetsManager::AssetsManager(const char* packageUrl, const char* versionFileUrl,
 , _version("")
 , _versionFileUrl(versionFileUrl)
 , _storagePath(storagePath)
-, _delegate(NULL)
 , _curl(NULL)
 {
     checkStoragePath();
@@ -119,7 +116,7 @@ bool AssetsManager::checkUpdate()
     
     if (res != 0)
     {
-        CCLOG("can not get version file content");
+        CCLOG("can not get version file content, error code is %d", res);
         curl_easy_cleanup(_curl);
         return false;
     }
@@ -275,7 +272,7 @@ bool AssetsManager::uncompress()
                 error = unzReadCurrentFile(zipfile, readBuffer, BUFFER_SIZE);
                 if (error < 0)
                 {
-                    CCLOG("error when read zip file %s, error code is %d", fileName, error);
+                    CCLOG("can not read zip file %s, error code is %d", fileName, error);
                     unzCloseCurrentFile(zipfile);
                     unzClose(zipfile);
                     return false;
@@ -304,6 +301,8 @@ bool AssetsManager::uncompress()
         }
     }
     
+    CCLOG("end uncompressing");
+    
     return true;
 }
 
@@ -349,7 +348,8 @@ static size_t downLoadPackage(void *ptr, size_t size, size_t nmemb, void *userda
 
 static int progressFunc(void *ptr, double totalToDownload, double nowDownloaded, double totalToUpLoad, double nowUpLoaded)
 {
-    cocos2d::CCLog("progress %d", int(nowDownloaded/totalToDownload));
+    CCLOG("downloading... %d%%", (int)(nowDownloaded/totalToDownload*100));
+    
     return 0;
 }
 
@@ -380,6 +380,8 @@ bool AssetsManager::downLoad()
         return false;
     }
     
+    CCLOG("succeed downloading package %s", _packageUrl.c_str());
+    
     fclose(fp);
     return true;
 }
diff --git a/extensions/AssetsManager/AssetsManager.h b/extensions/AssetsManager/AssetsManager.h
index cf4ebb3f27..c2ba1836fc 100644
--- a/extensions/AssetsManager/AssetsManager.h
+++ b/extensions/AssetsManager/AssetsManager.h
@@ -28,7 +28,7 @@
 #include <string>
 #include <curl/curl.h>
 
-class AssetsManagerDelegate;
+#include "cocos2d.h"
 
 /* 
  *  This class is used to auto update resources, such as pictures or scripts.
@@ -126,25 +126,7 @@ private:
     std::string _packageUrl;
     std::string _versionFileUrl;
     
-    AssetsManagerDelegate* _delegate;
-    
     CURL *_curl;
 };
 
-/* @brief This class is used as base class of the delegate of AssetsManager.
- */
-class AssetsManagerDelegate
-{
-public:
-    /* @brief When an error happens in updating resources, AssetsManager will invoke its delegate's onError().
-     *
-     * @param errorCode The pointer to record error code.
-     *                  The value will be set by AssetsManager.
-     */
-    virtual void onError(AssetsManager::ErrorCode* errorCode) = 0;
-    
-    virtual void onUpdate(float* percent) = 0;
-};
-
-
 #endif /* defined(__AssetsManager__) */
diff --git a/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.cpp b/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.cpp
index 58c4b66836..0c8a24b62e 100644
--- a/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.cpp
+++ b/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.cpp
@@ -117,6 +117,8 @@ void UpdateLayer::reset(cocos2d::CCObject *pSender)
 #endif
     // Delete recorded version codes.
     getAssetsManager()->deleteVersion();
+    
+    createDownloadedDir();
 }
 
 void UpdateLayer::enter(cocos2d::CCObject *pSender)
@@ -139,23 +141,7 @@ bool UpdateLayer::init()
 {
     CCLayer::init();
     
-    pathToSave = CCFileUtils::sharedFileUtils()->getWritablePath();
-    pathToSave += "tmpdir";
-    // Create the folder if it doesn't exist
-#if (CC_TARGET_PLATFORM != CC_PLATFORM_WIN32)
-    DIR *pDir = NULL;
-    
-    pDir = opendir (pathToSave.c_str());
-    if (! pDir)
-    {
-        mkdir(pathToSave.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
-    }
-#else
-	if ((GetFileAttributesA(pathToSave.c_str())) == INVALID_FILE_ATTRIBUTES)
-	{
-		CreateDirectoryA(pathToSave.c_str(), 0);
-	}
-#endif
+    createDownloadedDir();
     
     CCSize size = CCDirector::sharedDirector()->getWinSize();
 
@@ -187,3 +173,25 @@ AssetsManager* UpdateLayer::getAssetsManager()
     
     return pAssetsManager;
 }
+
+void UpdateLayer::createDownloadedDir()
+{
+    pathToSave = CCFileUtils::sharedFileUtils()->getWritablePath();
+    pathToSave += "tmpdir";
+    
+    // Create the folder if it doesn't exist
+#if (CC_TARGET_PLATFORM != CC_PLATFORM_WIN32)
+    DIR *pDir = NULL;
+    
+    pDir = opendir (pathToSave.c_str());
+    if (! pDir)
+    {
+        mkdir(pathToSave.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
+    }
+#else
+	if ((GetFileAttributesA(pathToSave.c_str())) == INVALID_FILE_ATTRIBUTES)
+	{
+		CreateDirectoryA(pathToSave.c_str(), 0);
+	}
+#endif
+}
diff --git a/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.h b/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.h
index 37c6c19f82..aaa8d404cf 100644
--- a/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.h
+++ b/samples/Cpp/AssetsManagerTest/Classes/AppDelegate.h
@@ -50,12 +50,14 @@ public:
     UpdateLayer();
     ~UpdateLayer();
     virtual bool init();
+    
     void enter(cocos2d::CCObject *pSender);
     void reset(cocos2d::CCObject *pSender);
     void update(cocos2d::CCObject *pSender);
     
 private:
     AssetsManager* getAssetsManager();
+    void createDownloadedDir();
     
     cocos2d::CCMenuItemFont *pItemEnter;
     cocos2d::CCMenuItemFont *pItemReset;