I'm sorry, my english isn't so good but i need to know how i can move files from one ftp to another so that i dont have download the file to my harddrive and then upload it to another ftp.
Is that possible?
didn't tested it but have you tried open a second browser window (command + n), connect separately to each ftp and then drag & drop the files?
i dont't know if cyberduck support this feature but imho both ftp have to support "fxp" so the client could manage only the connections but not the traffic.