I just removed these lines:
from backwpup.php, and destinations appeared in the job settings.
Tested and it works fine for DB backup and FTP upload, but still there was an error message:
"Upload to FTP now started ...
2013/02/20 13:48.51: [WARNING] ftp_nb_continue() [function.ftp-nb-continue]: Connecting to port 55000
2013/02/20 13:48.51: [ERROR] Can not transfer backup to FTP server!"
- however the file was on the server after backup process.
Not sure about files backup since the "curl_init" is the problem.
Will test this too, and if it does not work, then it should check whether it's DB only or files backup... so if it's DB only then "to enable" those settings even if the "curl_init" is missing.