I use cPanel since 4 years but now I have a problem I Addon a Domain in my hosting and install wordpress to it vua fantisco But there is problem ...my wordpress blog opens only when i write complete adress http://addondomain.domain.com Is there any procedure so that i only have to install wordpress via fantisco and use domain like:- mydomain.com
Your website should be working on both sub domain and your main domain. I will never recommend installing any script through these automated tools though...
when you install via fantastico, you need to choose the exact domain you like to use. You can change the address from wordpress admin.