Changing your homepage in Joomla is a fairly simple process. You will need to access the Settings menu and select the Webpage option. From here, you will need to select the Homepage template that you would like to use. Once you have selected the template, you will need to click on the Edit link next to the homepage title.
This will open the homepage editing window. Next, you will need to select the desired template from the drop-down menu and click on the Save button. Finally, you will need to click on the Update link next to the homepage title to save the changes.