First you should log in as an administrator to set up the courses. If you need detailed directions go to the first page of moodle.org. Then on the left side in the links block go down to documentation. Click documentation and you will be sent to the area with all the information you need. Read the instructions carefully and go step by step. English is probably not your native language so go slowly. Good luck and some other members can probably give you more information on what you need to do.