How Do You Use Extensions And Themes With Joomla?
How do you use an extension with Joomla to extend the functionality of the CMS? For example the Shopping Cart addon called virtuemart.
How do you use Themes with Joomla?
Are there any really good online resources/textbooks that show you how to add extensions and use them and how to create themes or use existing themes?
Search more about How Do You Use Extensions And Themes With Joomla?:
once you have downloaded the extension or theme in .zip format log into the administrator side of Joomla and go to extensions - install/uninstall. under Upload Package File click browse - find the .zip files you downloaded be it theme, extension, module, what not. Then click upload.
This will install and upload the package for you.