From Joomla! Documentation
- Log in to the Administrator (backend). If you are not sure how to do this see: To log in to the Administrator (backend)
- Click on: Extensions → Templates
You will now see the Template Manager screen.
Note: If you do not see Templates listed as an option on the Extensions menu, then it is most likely because you are not logged in as a Super Administrator. Only Super Administrators will see this menu item.