Instantly set up the program for students at different levels of ability. Write your own computer based training courses. It will cost you nothing to try it out. If you like the program then pay for it when you are ready. Pro never locks you out.
Zip files are a way of packaging files for downloading from the internet.
You will need to have installed the WinZip utility before you can use downloaded zip files. If you do not wish to unzip downloaded files then you may download this file which automates the whole process. After the download is finished just open the file and follow the instructions. When you get to the order form select the third item from the list.