You have installed the Magento and now looking for an easy step by step tutorial on 'Installing theme in Magento', then you landed up on the right page. Our expert has written a very concise and brief help guide for you. You can install theme in Magento in two ways: first is through Magento Connect and other one is just copy and paste in the root of your website. Further there are two ways to install a magento theme using Magento Connect: first is through Key and other one is through package.
Here I will explain most common method i.e. through Key.