diff --git a/04/writing_your_own_validators/protected/models/SiteConfirmation.php b/04/writing_your_own_validators/protected/models/SiteConfirmation.php
index 0ec00f7..ade5401 100644
--- a/04/writing_your_own_validators/protected/models/SiteConfirmation.php
+++ b/04/writing_your_own_validators/protected/models/SiteConfirmation.php
@@ -12,7 +12,7 @@ public function rules()
 	public function confirm($attribute,$params)
    {
 		$ch = curl_init();
-		curl_setopt($ch, CURLOPT_URL, $this->url);
+		curl_setopt($ch, CURLOPT_URL, $this->$attribute);
 		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 		$output = curl_exec($ch);
 		curl_close($ch);
diff --git a/05/testing_the_application_with_functional_tests/protected/tests/functional/CheckAllWidgetTest.php b/05/testing_the_application_with_functional_tests/protected/tests/functional/CheckAllWidgetTest.php
index 3b7cc66..8fae9bf 100644
--- a/05/testing_the_application_with_functional_tests/protected/tests/functional/CheckAllWidgetTest.php
+++ b/05/testing_the_application_with_functional_tests/protected/tests/functional/CheckAllWidgetTest.php
@@ -1,6 +1,17 @@
 <?php
-class CheckAllWidgetTest extends WebTestCase
+
+class CheckAllWidgetTest extends CWebTestCase
 {
+	/**
+	 * Sets up before each test method runs.
+	 */
+	protected function setUp()
+	{
+		parent::setUp();
+		// set the base URL for the test application.
+		$this->setBrowserUrl('http://localhost/test-application');
+	}
+
 	public function testWidget()
 	{
 		$this->open('check/index');
diff --git a/06/automating_timestamps/protected/controllers/TestController.php b/06/automating_timestamps/protected/controllers/TestController.php
index 36d2ad7..aff910f 100644
--- a/06/automating_timestamps/protected/controllers/TestController.php
+++ b/06/automating_timestamps/protected/controllers/TestController.php
@@ -7,6 +7,11 @@ public function actionIndex()
 		$post->title = "test title";
 		$post->text = "test text";
 		$post->save();
-		echo date('r', $post->created_on);
+
+		// we need to refresh the model since CTimestampBehavior uses
+		// CDbExpression to set creation date which has to be evaluated by the database
+		$post->refresh();
+
+		echo "Post has been created on " . date('r', $post->created_on);
 	}
 }
\ No newline at end of file