I added the landing page in version 1.3. You can download the latest version and copy that file (page_landing.php) and then add it to your theme folder.
It looks like you’re using version 1.2.1, so you’ll need to re-download and unzip the theme to get that file.
Are you using HTML5? If so, then you should be able to copy that file over with no problem. Just let me know if you run into any issues.