The installation of Opalis 6.3 includes a few steps, so we have two great blog posts to help you out.
First up, we have Charles Joy who has posted another of his awesome video's documenting the Opalis 6.3 installation process. You can watch his video over on his TechNet Blog.
And then secondly we have a fantastic post from our Opalis Community! Christopher Keyaert has written up an installation guide with screenshots, descriptions and some helpful tips and tricks. You can read his post over on his blog.
We hope this helps you on your way. Happy installing!