Putting an old HD in a new PS3 without formatting

[ghettoglamour]

shit, I've just restored the HDD, but everything's gone. No saves, no trophies, nothing. Maybe it's because I haven't logged in my local user on PSN?
It said something like "the data has been restored for an unregistered user which may cause a data loss".
Now I've logged in on PSN with my account, the files still aren't there, but I hope if I restore again it will work...