''Have you made a new account? I heard that save-files are atatched to an account''
No, even if you did make another account, you have to have the Playstation premium account, (Playstation Plus) to upload your files and save them online for backup.
The only way to accept an insult is to IGNORE it. If you can't ignore it, TOP it. If you can't top it, LAUGH at it. If you can't laugh at it, YOU PROBABLY DESERVED IT, SUCKER!
I'm very sorry that nothing didn't work When my GC memorycard broke I lost savefiles for Super Smash Bros. Melee and many more. Back then I went to my nephew who also had a Cube. I just copied his savefile to mine and unlocked the left over characters. Is that possible with a PS3?