Installing the CC Pose Manager plugin is easy. You can just follow the steps that you would usually follow to install any other plugin in ZBrush... So there is no 'installation' as such, you can just copy and paste the contents of the ZIP file into the right folder and that's it.
Here is how you can do it on a Windows PC:
That's it really... open ZBrush and the plugin should be in the ZPlugin palette.
These are two of the final concepts I created from the poses I covered in the tutorial series