You might want to read the description! But here's more detailed one:
1. Get a portable USB device 2. Make a folder in the device called PS3. 3. Inside PS3 folder, make another called THEME. 4. Download the ZIP folder from here, download button is on your right. 5. Extract KZ4 Theme from ZIP folder to THEME folder on the device. 6. Plug in the USB device in the PS3. 7. Go to Theme Settings 8. Install KZ4 theme.
1. Get a portable USB device
2. Make a folder in the device called PS3.
3. Inside PS3 folder, make another called THEME.
4. Download the ZIP folder from here, download button is on your right.
5. Extract KZ4 Theme from ZIP folder to THEME folder on the device.
6. Plug in the USB device in the PS3.
7. Go to Theme Settings
8. Install KZ4 theme.
I'm sure you figure out the rest
Keep it up!