The link he gave you was a walkthrough.
If you want more information, searching "install from source" on the forums and Google should lead to plenty of answers.
It generally goes like this:
tar -xvzf [file.tar.gz]
[directory is created with files]
cd [directory name]
[the script runs]
[the program compiles]
[enter root password]
Binaries are usually installed in /usr/local/bin or /usr/bin. Libraries are usually in /usr/lib, /usr/local/lib.
to find out where a program is:
but you can usually just type the program into a terminal.