I am disappointed to see the above post closed and from 2 years ago and the problem is still not fixed!
I still can't get the BackWPup ftp to work. I have tried everything. I've also posted to Daniel's forum. Has anyone been able to make it work?
I'm getting this error
[WARNING] ftp_nb_fput() [function.ftp-nb-fput]: Permission denied
2012/08/29 19:59.36: [ERROR] Can not transfer backup to FTP server!
and then the ftp is aborted. This is a great plugin when it works.