Install like any other basic plugin:
Copy the advanced-text-widget folder to your /wp-content/plugins/ folder
Activate the Advanced Text Widget on your plugin-page.
Drag the Advanced Text Widget to your sidebar and add your own content including php code if needed. Optionally specify whether to display only on home, pages, posts, posts in category (-ies) or category archives. Specify even more if you like with slug/ID/title.
Notes:




