Here following the easy steps for the ghost theme installation :

1. At first login to the admin panel of your Ghost blog. If you dont have the blog ready then complete the ghost installation first.  

Now login  to your blog. Example URL: yourwebsite.com/ghost

2. Select the Settings option from the left side of your ghost admin panel  and then navigate to the themes section.

Ghost Theme Installation
Select Themes Option from the Settings

3.  Click on the Upload a Theme button.

4. An upload option should appear. Now drag the theme ( theme_file_name.zip ) file in that area. You should get that zip file from our downloaded package.

5. Once completed the theme upload, click on Activate Now button and then activate the theme.

Ghost theme installation is really easy task. But if you are unable to do that. Please feel free contact us. We would happy to help you free for Ghost theme installation.