/**
	 * Check if the plugin was installed.
	 * 
	 * @access private
	 * @return void
	 */
	private function __checkInstallation() {
		// Check the installation status
		if (ForumConfig::isInstalled()) {
			$this->redirect(array('action' => 'index', 'controller' => 'home', 'plugin' => 'forum'));
		}

		// If progress hasn't begun, redirect
		if ($this->action != 'check_database') {
			if (!$this->Session->check('Install')) {
				$this->redirect(array('action' => 'index'));
			}
		} else {
			if (!$this->Session->check('Install')) {
				$this->Session->write('Install', array());
			}
		}

		// Auto load DB
		if ($this->Session->check('Install.database')) {
			$this->DB =& ConnectionManager::getDataSource($this->Session->read('Install.database'));
		}
	}