Whatever Just Basic is, I can assure you that you will never use it later in life.
I went on their website, and it looks to me as a sorry excuse to make money. According to http://justbasic.com/learnmore.html, for $50 you get access to the Windows API and and/or external DLLs.
Things like that should come for free in a programming language. If you look at any major programming language (Java, C, C++, C#, Python, PHP, Perl, Ruby, the list goes on and on), where you can write any code you want for free, the idea of having to pay extra for capabilities because they were limited on purpose purely to make money is ludicrous and reeks of money grubbing idiots.
You should try to see if you can learn in a different language. I hear Python is a good place to start, though I myself started learning C# first, then adopted Java as my main language.