Get DW Timeline theme workable in Ghost

Hi,

I have just purchased DW Timeline Ghost and would like to deploy it, however I encountered the problem in showing all content found in the demo, could you please help me?
Steps:

• Create a Ghost site.
• Upload the theme (Setting > Theme > Upload a theme):
  • There are errors to fix, e.g. If you are using {{if image}}, then you have to replace it with e.g. {{if feature_image}}and so on.
  • After fixing it by changing variable name, I upload it successfully.
• I then import sample data (Setting > Labs > Import content > pick “data-sample.json”)
  • Error output: “Import failed. Please install Ghost 1.0, import the file and then update your blog to the latest Ghost version. Visit https://ghost.org/docs/update/ or ask for help in our https://forum.ghost.org.: Detected unsupported file structure”.

Could you please show me a new data-sample.json file that I can import and reproduce the live demo webpage?
 
Thank you.
Sincerely,
Vinh