"It is divided up into useful sub-categories, such as
Accessories, which included things like an online comic reader.
Education gives you the ability to install learning tools for
Chemistry, Physics, Maths and many other subjects. Games, Graphics,
Internet, Office, Other, Programming, Sound & Video, System
Tools and Universal Access are the other categories.
"When you have found what you want, then you simply tick the box
next to it and click on Apply Changes in the bottom right corner.
You'll need to put in your password as you are making a fundamental
change to the system."