1st This sounds more like a tutorial then a help request.
How to copy your PS3 backups from PC to internal PS3 drive (PS3 FTP)
Connect to that IP, port 21, use the username: FTPD12345, and whatever password you like. I could have removed the username check in the library, but I’m lazy!
3rd Try blackb0x FTP v1.2 + FlashFXP