Click here for the installer file. You'll see a file called "Minitab16.zip". Click on it to download (save it to your desktop). Then double-click on it to unzip the file to a folder. Inside that folder you'll find the software installer! **NOTE: Minitab is only available for the Windows operating system. There currently is no version for Apple computers.
If you just need to update your Minitab 16 license file, send an e-mail to email@example.com and we'll send you an updated file.
For Mathematica, just go to Student home use. Fill out the form and await download instructions, etc. from Wolfram.