htaccess for web domain

I bought a second domain on a shared web hosting service (godaddy). In my new file folder, I was told to create an htaccess file. I can't seem to get it right. The website is ilfbla.org and only one site can show up at a time. Also, i want the index page on ilfbla to load when you go to ilfbla.org. I have a picture of the screen I am working with. Does anyone know how to code this? Thank you.http://ift.tt/1SiReVI