Please see Kerry56's post regarding what a thread is... basically, it's a question you've asked, and a venue we can respond on...all kept together in one area for easy reference by all involved...
As to being new and unknowledgable, don't worry...we've all been there... I'm going to take you step by step to a working understanding of the program and how to use it.
DVDFab is a program specifically written to allow you to back up any DVDs you own (which I will start referring to as 'store-bought') to keep the originals safe and scratch-free while you use the copies for watching. (especially useful if you have little ones running around!).
For a variety of reasons, please do not download any films... I'll explain why later...
Before we start, I need to know some basic information, so at this point, please start up DVDFab. We need to be in the main program window (you can tell, as there will be a gray bar across the top of the program window, showing, from left to right, the Fab icon - same as the desktop one - and some text 'DVDFab (Mobile Option) Ver. 220.127.116.11...'
Of particular interest are the two small icons (a white check-mark on a green disk, and a white question mark on a blue disk). Please click on the question mark.
You'll then have two options: 'Tutorial' and 'About'.
Please click on 'About'
The 'About' screen will tell me if you are still in Trial Version, or, if the key registered, your status for both DVDFab and the Mobile Option.
Please advise what that screen says about your status. (It'll determine my next post to you).