hi people
where can i do asterisk gui download? i cant find it 
You will have to get it from SVN, it hasn’t been packaged yet as I dont think it has actually been released as a version.
Edit: link to install instructions added
http://asterisknow.org/install-related
can i download each of these files to make the package?
You could but why unless you ahve multiple installs to do. If you follow the isntructions it should intall and work.
NOTE: I have not tried this for myself, I have only just looked at the instructions and they seem complete to me.