These instructions assume the operating system has been installed as a default system with a graphical desktop.
This installation needs a compiler and libraries.
Insert the installation media.
Run Applications - System Tools - Synaptic Package Manager.
In the package manager, search for libgtk2.0-dev, mark it for installation, and mark the additional required changes too.
Do the same for package g++.
Click Apply and let the package manager finish.
To open a terminal, click the Terminal icon at the top.