When you buy a template, you can download quickstart which allows you to launch Joomla with pre-installed templates and settings.
You can do that as on locahost, as on hosting. This short tutorial will help you to launch the quickstart.
- Step 1: First of all, create Database.
- Step 2: Create subdomain to extract archive files to. Then extract q_[templatename].zip archive and move / upload files to subdomain.
- Step 3: Open subdomain. The installation process will be started.
- Step 4: Fill all fields according to this tutorial.