It does not matter if you use the free or the premium edition, because the installation process is completely the same.
But lets start:
- Download the ComBoot theme
- Use any unzip program (e.g. WinRar or 7zip) and unzip the theme on your desktop
- Start your favorite ftp client (e.g. FileZilla)
- Now upload the previously unzipped folder to
- Be sure, that the style folder is called
comboot, so the path to your style looks like
/your-phpBB-installation/styles/comboot. Only then, extensions are able to support ComBoot!
If you have any issue, be sure to ask a question in the community!