If filemanager is not working, then there could be any of the following problem

1. Server may cache the data. [Solution: Ask your server administrator regarding server caching.


2. Browser may cache the data. [Solution: If you are using internet explorer, click on
   tools -> Internet Options -> Settings -> Check "Every visit of the page". Click ok and refresh the application again]
   
3. Proper permission to data files may not be given. [Solution: Go to data directory. Select all xml files and right click on it. Uncheck read only permission(if any). Go to security tab and check all permissions.]
   
4. Sometimes there may be upload problems occur
   
   1. If files uploaded successfully but file does not displayed. [Solution: Above defined (a)(b)(c) is the solution for this.]
      
   2. If http error occurs(404, 405, 406), Server security may raise problem. In case of download, the same will show IO error.
      [Solution: Find .htaccess file from the web root, edit with notepad and add these two lines...
      SecFilterEngine Off
      SecFilterScanPOST Off
      ]
   3. In some cases when large files are uploaded and not shown into the list, check maximum upload size limit as well as maximum post data size. If these are lower than the requirement, increase it.
      
5. For problems in image related operations, please insure that php must be GD Version bundled (2.0.28 compatible). If not ask to server administrator to enable it (*add php_gd2.dll. Used to create thumb images.).
   
6. When IO Error occurs, this may arise when the upload or download fails for any of the following reasons:
   
   1. An input/output error occurs while the player is reading, writing, or transmitting the file.
      
   2. The SWF file tries to upload a file to a server that requires authentication, such as a user name and password. During upload,
   Flash Player does not provide a means for users to enter passwords. If a SWF file tries to upload a file to a server that requires authentication then also upload fails.
   
   3. *The value passed to the url parameter in upload() contains an invalid protocol. Valid protocols are HTTP and HTTPS.
      Important: Only Flash applications that are running in a browser -- that is, using the browser plug-in or ActiveX control -- can provide a dialog to prompt the user to enter a user name and password for authentication, and then only for downloads.
      For uploads that use the plug-in or ActiveX control, or that upload and download using either the standalone or external players, the file transfer fails.
      

Data saving and loading
==========================
The application contains data into xml format in data folder. There may be issues regarding saving and loading data. Solution may be any one of the above described solution.

Main cause is caching. Caching either from server side or may be from browser side. There may be a problem due to lack of required file permission on data files(xmls).

System directories names and positions are standard and any wrong placement can cause misbehaviour of application. Please insure that all system folders are placed in there proper described places.