1.after selecting the internet page to download the stuff(the part where you have to change "devel"
to "install") I don't understand the "wget" part.
You have to select
1.10.2-2, it is the version (you have to select the last one).
2.does the "main.c" thing is a file or a directory?
It's a file.
3.when making the program, where exactly do you paste it or write the program?
In the main.c
4.and I really don't understand anything about the "makefile"(which progam I should use and all that stuff).
The makefile it's another file in the same directory you must create (Makefile). To compile it you have to cd to your project dir and type make.