Download and Installation

When you click on a link above a dialog labelled 'File Download' will be displayed.
Click 'Save'
A dialog labelled 'Save As' will be displayed.
Navigate to the folder in which you want to save the file.
Click 'Save'

Installation

Click Start
Click Run
Click Browse
Navigate to the folder in which you saved the downloaded file.
Double click on the file to unpack it. The following dialog will be displayed:

By default the program will unzip to your temporary folder.
Either accept the suggested folder (c:\windows\temp) or click 'Browse' to navigate to the folder you prefer to use.
Click 'Unzip'

The program will be unzipped into the preferred folder. 
Double click on the executable file (*.exe) to run the tutorial.

For the Tips and Tricks programs you get to try it out twice before you must pay for it.

To try it you click the 'Try It' button. 
To buy it you click the 'Buy It' button. 

(Don't forget to read the licence and readme files.)

For all other programs the evaluation period (unless otherwise specified) is 14 days from installation.