My PS3 broke, my save files got all deleted, this has happened to many people, nothing new.
I had a 50+ hours save from FF IX and a 100+ hours save from White Knight Chronicles II, plus many others like Dark Souls 100+...
I was looking for a FF IX save file. I don't want to play 50 hours again.
Save a PSOne game to your PC through content manager to create the save folder for them on your PC if you haven't already. Copy one of the PS3 virtual save files from GameFaqs (DexDrive saves wont work unless you have a hacked PSP to convert them). Put the .PSV in that folder (should just be a bunch of random numbers and letters)
You should be able to open up content manager and transfer it to your Vita.
A word to the wise ain't necessary - it's the stupid ones that need the advice