Add New Theme Option in WordPress 2.8
In wordpress 2.7.1, they introduced a new feature, to add a plugin from the dashboard itself. In 2.8, you can add the new theme from dashboard. You can do this using the below mentioned options:
1) Go to Appearance –> Add New Theme
2) Search for your theme by various options and click on install
3) Provide your FTP details and the theme will be installed. However, unlike plugins, you can not upload the plugins from your local system from a zip folder.