I'm looking to customize the pages for Coursepresspro for

I'm looking to customize the pages for Coursepresspro for what the user sees on the front end. So far I like what I see with Coursepresspro on the backend but would like to adjust what the user sees.

For example I would like to add a button to inform new users to "REGISTER" as a user first because it seems that CPP requires people to be "registered" before they can Enroll for a course. I'm targeting my courses at new members so I will need to guide them to register first in order to see the enroll button.

Thanks in advance for the great support!