Hi guys, does anyone know the way or guide line to upgrade Transformer firmware to PRIME v.1.5?

i quite not understanding on below :

Instructions:
1. Copy ROM to sdcard
2. Verify the MD5 of the zip on the sdcard, DO NOT FLASH IF THIS DOESN'T MATCH THE MD5 UNDER THE DOWNLOAD LINK!
3. Boot into clockworkmod recovery
4. Take a nandroid backup (optional but highly recommended)
5. Install the ROM
6. Reboot and wait... The first boot may take a while...