I just tested our latest Site Shaper package for Hexicon gamer 3.0 on my live server and it installed properly and without issues.http://mikendesigns.com/hexicongamer/
This means you are either installing incorrectly, your initial download was corrupted or your server has some sort of Upload Limitations that are blocking the install. Every Template and Databases are different sizes so it is possible your server uses a PHP MaxUpload size that only affects certain products.
I would start by creating a new database, reinstalling the Site Shaper and following the instructions in our video tutorial. If none of that works check with your host to review the error logs when installing. The Template itself has no impact on the install process and doesn't get applied until the last step of a standard Joomla Installation.