There is one download file, in a zipped folder.

Its name is

Click  Download  (below) and save the zipped file to the folder  Documents

Go to the  Documents  folder and click on  mathalive (the zipped file)

Then click on  extract files

The files are then extracted and put in a new folder called  mathalive

The mathalive folder contains five folders, one for each of the programs. Click on each of these in turn, select the program file (the one with the appropriate icon) , right click for a menu and set up shortcuts to each of the three program files (applications). Choose send to and desktop to create the shortcut.