Error renaming file

[sh-khaled]

I'm using CuteFTP to manage my files .
something strange happens when i try to rename a file .
this is the log :

STATUS:> Renaming remote file "/index.htm" to "/index_old.htm"...
COMMAND:> RNFR /index.htm
550 Rename/move failure
ERROR:> Requested action not taken (e.g., file or directory not found, no access).

and this message appears :

Request denied.
Verify that the file or folder exists and that you have the necessary permissions on the server to perform the requested operation .

this is strange !
does anyone use CuteFTP 6.0 Pro and get this message when renaming a file ???
why do i get this error ??

i tried using Internet Explorer to ftp to my acount then rename the file , but i get an error again , here is the message i get :

An error occurred renaming the file or folder on the FTP Server. Make sure you have permission to make this modification.
Details:
550 Rename/move failure.


why does that happen ??????

[CFE]

I don't know if bizhat.com allows you to rename files on their server.
Your going to have to ask someone higher ranking than me or uses their services more.

[sawanbanna]

I think they don't allow by now, they used to, but you can delete it, why not try to rename it before you upload over the old one...

[sh-khaled]

i download it , rename it , then upload it .
but this is not handy at all .
i don't know why don't they allow that ??
is renaming files from people's account harmful or could cause someone to hack into their systems ??
strange .

anyways CFE_aAa_FeLoNy whom should i ask about this ??