Basic should remove the dollar signs all over the image you see in the demo. All you have to do is enter your serial number in the registration place (which I forget where it is since I did it so many years ago). If you have the demo, you don't even have to download anything, just enter the serial number one time.
I do recommend the Pro version as that gives you a lifetime of free upgrades for the extra $20 or 30 it costs. My only payment to Ed Hamrick was something like $35 about 10 years ago, been using the free upgrades ever since. Now if Microsoft would have offered that for windows ...................