use this:
ip: the ip showed in Ftp Server on ps3
user: FTPD12345
password: 123
port: 21

or you can copy it with file manager...im use it..it's more fast!
you need to copy the game in a usb (8gb or more) or in external HD, then connect to your ps3 and copy it with awesome file manager

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you need to copy the blus folder into: dev_hdd0/GAMES/YOUR BLES FOLDER

the GAMES folder can change...if you have an Backup Manager with GAMES folder you need to copy in GAMES folder..if you have a backup manager with GAMEZ folder, you need to copy your folder game to GAMEZ folder....etc.

you can see and setting this folder in your Backup Manager, im personally use Multiman with GAMES folder.

then open your Backup Manager and boot your game.

try to install a newer version of FTP Server in your PS3 or try to use an Backup manager for copy the backup or the File Manager.