You have to download the save off the computer and put it on a memory stick but.. You must put it in a certain folder, on the USB make a folder called PS3 then SAVEDATA and extract the game save you downloaded to that folder. I tried this with a LBP save and it worked but I wasn't able to play online or use the purchased content that was bought on that account. Hope this helps if you didn't know already
i would like to no step by step how to do it if u can help thx