1. Put the files in the root od usb/external or Multiman's File Manager
2. Install .pkg file via "Install Packages"
3. Copy files from folder "exdata" to/ dev_hdd0/home/00000001/exdata / (The folder '00000001' is your user profile id. If you have only one profile - that is the only folder you'll see under /home/ catalog.
In case you have multiple profiles, copy the *.edat file to the one that you will be playing the game from.
If the folder 'exdata' is not present that means you've never been logged to PSN - create it manually and put fixed files in it
4. Play.