The CURL library installed or "allow url fopen" enabled in php.ini or WP 2.5 and up.
The plugins directory needs to be writable by the webserver (if you plan to use the upgrade/installer features of this plugin). The exact permission requirements vary by server, though CHMOD 666 should be sufficient.
To install the plugin follow these steps :
Download the one-click-plugin-updater.zip file to your local machine.
Unzip the file
Upload "one-click-plugin-updater" folder to the "/wp-content/plugins/" directory
Activate the plugin through the 'Plugins' menu in WordPress
Requires: 2.3 or higher Compatible up to: 2.9.2 Last Updated: 2009-9-9 Active Installs: