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WordPress - Install a new Theme
Install Themes These steps will help you install and select a WordPress theme for your blog. Inside the WordPress Dashboard, select the Add New Themes link in the Appearance Menu. You can search for
How to install other themes than subSilver to add more variety to your phpBB message board.
Disable or Delete Plugins/Themes on a Disabled WordPress site.
This article explains how to deactivate, change or delete themes and plugins on a WordPress site without the dashboard.
Managing Themes and Plugins with WordPress Tools
This article will explain how to manage WordPress plugins and themes using WordPress Tools.