Installing a template
From Joomla! Documentation
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Install via Admin Panel (packed template file)
Log into the back-end of your site (www.your-site.com/administrator/)
Click on: Extensions -> Extension Manager
You see the page "Extension Manager"
From here you can install your Templates, Plugins, Modules, Components and Languages. You have three options:
- Upload Package File - (select a package from your PC, upload and install it)
- Install from Directory - (enter the path where the package is located on your server)
- Install from URL - (enter the URL to the package)
Here, we choose the first method: Upload Package File
Select the package from your PC and click the button "Upload File & Install"
If the package contains no errors you are done and get a success message like the one below.
Install via FTP (unpacked template file)
Templates can also be installed via FTP without packaging them. Simply select the template folder on your PC and upload it to your server, using your favorite FTP software. Be sure you upload the template folder to the directory: /path_to_joomla/templates/ - where /path_to_joomla/ is the location of your Joomla! installation on the server. This method is mostly used when you have created a template yourself, and do not want to have to package it to install the template, or if you want to upload more than one template at once. You must then go into extension manager and click on Discover in the sub menu. Click on "Discover" in the toolbar if your template doesn't immediately appear. A list of uninstalled items in the FTP should then appear. Click the checkbox to the left of your template and click install.
Note: Do not try to use FTP to install Components, Modules and Plugins if you are a beginner/novice. These items need database entries which have to be inserted manually if you bypass the package installer.