These saves are locked so FTP or File Manager is required. You will need some sort of jailbreak method for this, you can read about jailbreaking and downgrading your PS3 here. If that doesn't help, you can ask here. Just do not ask PS3 exploiting questions here!
I have not tested this save but have provided all files to this platinum save. Majority of trophies should pop, maybe online as well, don't know with this one.
Download: *my premium save thread here*
Yes, you need to be premium to download this save, prevents leeching.