1. Download the Save Game zipped file 
2. Unzip to a USB drive / external hdd using this path in front of the unzipped folder: PS3\SAVEDATA\
3. Once you plug it in to the PS3, go to XMB\GAMES\Saved Data Utility, not Game Data Utility. 

Once you select Saved Data Utility, it should show your USB drive as one of the selections. When you select that, your saved game icons should automatically open up. Select the game save you want to transfer, then hit Triangle. The panel will have Copy as one of the options. When you select that, it will automatically copy the game save to the PS3 hard drive.

TIP: Make a backup of your own save files before copying from the USB stick. Some game saves asks you to overwrite the exisitng save.  For the most part you can have multiple saves for the same game. 

Don't mind the autogenerated name for the zip file. Please inform us if saves isn't working correctly.

Make sure you have an Internal Memory Card created on your PS3 in advance.

Tip! If you don't want to overwrite your existing game save, you can make a second virtual memory card which you copy the PS2 saves into. Go to create New Internal Memory Card and choose PS2 memory card. Give it a descriptive name so you know which one is for downloaded saves and which one is for your own saves.

1. Be sure that you put the PSV files onto your USB stick under the path PS3/EXPORT/PSV/  (create it if doesn't exist). If the save includes more than one psv file it will be zipped and in the format 563f5159-fa14-4ad6-b956-2e6aafe686ed.zip. You must unzip it to the path above before continuing.
2. Insert the USB stick into the PS3 and go to Game -> Memory Card Utility (PS/PS2)
3. Choose your USB stick and push Triangle on the Six axis controller and choose copy. If you made more than one Internal Memory Card you can chosse the one that fits you the most (See tip before).
4. If you've made more than one Internal Memory Card you need to choose the right Memory Card when the game starts.