This installs the same as my previous Hybrids. Just download the zip file and extract it to your desktop then initialize the exe and install into a clean 4.7.0.151os
Download 4.7.0.151
HERE
The following tutorial is from my 7.1.4 install, it is the same as v8
Once downloaded and extracted double click to run the installer
If you have 151 already installed it will default to that folder and you will not have to choose a directory
Click the next button to continue install
It will ask you if you want to create the destination directory click no
Click the browse button and navigate to C>program files>common files>research in motion>shared>loader Files>and highlight your OS folder
Once highlighted click next to load the hybrid
Once finished click next and then use apploader to install on your phone

If you want to shrink the OS it is perfectly safe