Cannot upload - Permission denied

I have tried various times to upload a pic into my website. I have followed the flash help video and still no better. Here is the log I get after trying:
[14:03:50] TYPE I
[14:03:50] 200 Type set to I
[14:03:50] SIZE actbundle.jpg
[14:03:51] 550 actbundle.jpg: No such file or directory
[14:03:51] File size check (SIZE) failed. File not found or permission denied.
[14:03:51] PASV
[14:03:51] 227 Entering Passive Mode (85,13,195,48,159,189).
[14:03:51] Opening data connection to 85.13.195.48 Port: 40893
[14:03:51] STOR actbundle.jpg
[14:03:51] 550 actbundle.jpg: Permission denied
[14:03:51] MDTM 20061121114834 actbundle.jpg
[14:03:51] 550 20061121114834 actbundle.jpg: No such file or directory
[14:03:51] Transfer failed.

I can download files to my local folder but not the other way.
I have seen on this forum this seems to be a common complaint - anyone found a way round it?

In your case, you simple have not the correct write permissions set. Use CHMOD / Properties (F7) on the parent folder(s) and make sure write permissions are set. If you're not allowed to do that or it doesn't help, it might be that the server admin has restricted your rights to download only (for that folder). In that case you need to contact him / her.

In your case, you simple have not the correct write permissions set. Use CHMOD / Properties (F7) on the parent folder(s) and make sure write permissions are set. If you're not allowed to do that or it doesn't help, it might be that the server admin has restricted your rights to download only (for that folder). In that case you need to contact him / her.

Thanks for that eyebox. I have tried to CHMOD the folder with no success so I will contact my server admin.
Many thanks