diff --git a/_config.php b/_config.php
index fb76338..07a6109 100644
--- a/_config.php
+++ b/_config.php
@@ -4,4 +4,6 @@ Director::addRules(10, array(
 	'metaweblog' => 'MetaWeblogController'
 ));
 
+if(class_exists('WidgetArea')) DataExtension::add_to_class('BlogTree','BlogTreeExtension');
+
 ?>
diff --git a/code/BlogHolder.php b/code/BlogHolder.php
index 528d91b..b71d13a 100644
--- a/code/BlogHolder.php
+++ b/code/BlogHolder.php
@@ -111,26 +111,32 @@ class BlogHolder extends BlogTree implements PermissionProvider {
 			$blogholder->URLSegment = "blog";
 			$blogholder->Status = "Published";
 
-			$widgetarea = new WidgetArea();
-			$widgetarea->write();
+			if(class_exists('WidgetArea')) {
+				$widgetarea = new WidgetArea();
+				$widgetarea->write();
 
-			$blogholder->SideBarID = $widgetarea->ID;
-			$blogholder->write();
-			$blogholder->publish("Stage", "Live");
+				$blogholder->SideBarID = $widgetarea->ID;
+				$blogholder->write();
+				$blogholder->publish("Stage", "Live");
 
-			$managementwidget = new BlogManagementWidget();
-			$managementwidget->ParentID = $widgetarea->ID;
-			$managementwidget->write();
+				$managementwidget = new BlogManagementWidget();
+				$managementwidget->ParentID = $widgetarea->ID;
+				$managementwidget->write();
 
-			$tagcloudwidget = new TagCloudWidget();
-			$tagcloudwidget->ParentID = $widgetarea->ID;
-			$tagcloudwidget->write();
+				$tagcloudwidget = new TagCloudWidget();
+				$tagcloudwidget->ParentID = $widgetarea->ID;
+				$tagcloudwidget->write();
 
-			$archivewidget = new ArchiveWidget();
-			$archivewidget->ParentID = $widgetarea->ID;
-			$archivewidget->write();
+				$archivewidget = new ArchiveWidget();
+				$archivewidget->ParentID = $widgetarea->ID;
+				$archivewidget->write();
 
-			$widgetarea->write();
+				$widgetarea->write();
+			} else {
+				$blogholder->write();
+				$blogholder->publish("Stage", "Live");
+			}	
+			
 
 			$blog = new BlogEntry();
 			$blog->Title = _t('BlogHolder.SUCTITLE', "SilverStripe blog module successfully installed");
diff --git a/code/BlogTree.php b/code/BlogTree.php
index 9b559c3..df76abc 100644
--- a/code/BlogTree.php
+++ b/code/BlogTree.php
@@ -23,9 +23,9 @@ class BlogTree extends Page {
 		'InheritSideBar' => True
 	);
 	
-	static $has_one = array(
-		"SideBar" => "WidgetArea",
-	);
+	static $has_one = array();
+
+	static $has_many = array();
 	
 	static $allowed_children = array(
 		'BlogTree', 'BlogHolder'
@@ -113,9 +113,11 @@ class BlogTree extends Page {
 			"12 MONTH" => "Last year's entries", 
 			"INHERIT" => "Take value from parent Blog Tree"
 		))); 
- 	
-		$fields->addFieldToTab("Root.Widgets", new CheckboxField("InheritSideBar", 'Inherit Sidebar From Parent'));
-		$fields->addFieldToTab("Root.Widgets", new WidgetAreaEditor("SideBar"));
+ 		if(class_exists('WidgetArea')) {
+ 			$fields->addFieldToTab("Root.Widgets", new CheckboxField("InheritSideBar", 'Inherit Sidebar From Parent'));
+			$fields->addFieldToTab("Root.Widgets", new WidgetAreaEditor("SideBar"));
+ 		}
+		
 		
 		return $fields;
 	}
diff --git a/code/widgets/BlogTreeExtension.php b/code/widgets/BlogTreeExtension.php
new file mode 100644
index 0000000..60b5820
--- /dev/null
+++ b/code/widgets/BlogTreeExtension.php
@@ -0,0 +1,7 @@
+<?php
+
+class BlogTreeExtension extends DataExtension {
+
+	static $has_one = array("SideBar" => "WidgetArea");
+
+}
\ No newline at end of file