I downloaded Moodle 2.7 in winzip form and now it won't let me install. I am new and have no clue what to do other than to say that Moodle SUCKS!
Maybe you need to start by reading the following:
http://docs.moodle.org/27/en/Installation
Sounds like you want Moodle to behave like any other free software such as Libreoffice, Blender, Linux, Gimp. But it doesn't work that way. You first of all need a web address for where you can provide courses, and where students can find you to enrol with your courses.