Please use the .TSM file. Save the .zip file and extract the files on your computer. Start TINA-TI and click on the Insert option and choose Macro... Navigate to the location where you saved the .TSM file and click on it. It will be inserted into your schematic.
You can also use the TINA Average Reference Design (.TSC file) and simply open up the reference design and modify it to your needs. This is the quickest way to get started.
Britt