I would appreciate some help
.
The problem is that when I use my custom CMS for uploading image on my client website using localhost it work's fine BUT when I moved everything on my client server I got this ERROR when uploading an image :

> Warning: move_uploaded_file(uploads/tmp/74245809612173promo_bg.jpg)
> [function.move-uploaded-file]: failed to open stream: Permission denied in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 67
>
> Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move
> '/tmp/phpEMrqCo' to 'uploads/tmp/74245809612173promo_bg.jpg' in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 67
>
> Warning: imagecreatefromjpeg(uploads/tmp/74245809612173promo_bg.jpg)
> [function.imagecreatefromjpeg]: failed to open stream: No such file or
> directory in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 75
>
> Warning: imagesx(): supplied argument is not a valid Image resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 76
>
> Warning: imagesy(): supplied argument is not a valid Image resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 77
>
> Warning: Division by zero in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 79
>
> Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid
> image dimensions in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 81
>
> Warning: imagecopyresampled(): supplied argument is not a valid Image
> resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 82
>
> Warning: imagejpeg(): supplied argument is not a valid Image resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 83
>
> Warning: imagecreatefromjpeg(uploads/tmp/74245809612173promo_bg.jpg)
> [function.imagecreatefromjpeg]: failed to open stream: No such file or
> directory in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 75
>
> Warning: imagesx(): supplied argument is not a valid Image resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 76
>
> Warning: imagesy(): supplied argument is not a valid Image resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 77
>
> Warning: Division by zero in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 79
>
> Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid
> image dimensions in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 81
>
> Warning: imagecopyresampled(): supplied argument is not a valid Image
> resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 82
>
> Warning: imagejpeg(): supplied argument is not a valid Image resource in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 83
>
> Warning: unlink(uploads/tmp/74245809612173promo_bg.jpg) [function.unlink]:
> No such file or directory in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 90
>
> Warning: Cannot modify header information - headers already sent by (output
> started at
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php:67) in
> /home/nmangan/johnhowardson-www/john_backend/validate_tabs_edit.php on line
> 43

My worry is only about the first three lines

Thanks in advance for your help.

Yanick