No its not
but it could be more simple
No. But it can seem that way, since a LiveCD generally gives you something else to do.
Many distributions have documentation or builtin graphical installation utilities.
The X Windowing System is the "de facto" standard for graphical shells in Unix and Linux. Desktops use it as a client as well as all the graphical applications.
1. meld 2. kompare
The most often used X Window (graphical) desktop environments are KDE and GNOME. There are many others.
Sure can. VBA has been ported to Linux and has even a number of graphical frontends to make it easier to use.
Without knowing what errors you are receiving, and what you have already tried, it would be impossible to suggest an appropriate course of action.
http://unixmen.com/hardware-linux/72-installation-canon-lbp2900-on-linux
There are several different graphical interfaces for Linux, each of which have their features in different locations. You must specify what interface you are using.
No.
It's a command to start the X server for running Linux in graphical mode, if you have any of the desktop environments and/or window managers installed.
There is no "the" installation program for Linux. Each distribution has its own (more or less), and it's generally referred to as "the installer" unless they've given it a more specific name.