Hi,
If you are trying to download the wipsoft.dwl file , you can use hyperterminal to download it. Issue AT+WDWL command , then click on transfer tab ,click on send file .In the brrowse tab give the location where the wipsoft.dwl file is located then click on send.
After the download is complete, issue the command AT+CFUN=1 to reset the module and then issue the command AT+WOPEN=1.
After this you will be able to issue WIP commands.