You can get to your control panel by going to http://www.yourdomain.com/cpanel/ or http://www.bluelinehosting.com/cpanel.
Your cPanel can also be accessed from the Client Area (http://www.bluelinehosting.com/my/).
1. Click "My Hosting Packages"
2. Click "View Details" for the hosting account.
3. Click "Login to cPanel"