diff -rau flattr/flattr5.php flattr_fix/flattr5.php
--- flattr/flattr5.php	2011-10-12 16:37:20.000000000 +0200
+++ flattr_fix/flattr5.php	2011-11-17 16:51:54.932432623 +0100
@@ -141,10 +141,13 @@
 			$hidden = get_option('flattr_hide', false);
 		}
 
+		$custom = get_post_meta($post->ID, '_flattr_post_customurl', true);
+		$buttonUrl = (empty($custom) ? get_permalink() : $custom);
+
 		$buttonData = array(
 
 			'user_id'	=> $flattr_uid,
-			'url'		=> get_permalink(),
+			'url'		=> $buttonUrl,
 			'compact'	=> ( get_option('flattr_compact', false) ? true : false ),
 			'hide'		=> $hidden,
 			'language'	=> $selectedLanguage,
diff -rau flattr/postmeta.php flattr_fix/postmeta.php
--- flattr/postmeta.php	2011-10-12 16:37:20.000000000 +0200
+++ flattr_fix/postmeta.php	2011-11-17 16:51:54.893431589 +0100
@@ -22,8 +22,9 @@
 	
 		add_post_meta($id, '_flattr_post_language', $_POST['flattr_post_language'], true) or update_post_meta($id, '_flattr_post_language', $_POST['flattr_post_language']);
 		add_post_meta($id, '_flattr_post_category', $_POST['flattr_post_category'], true) or update_post_meta($id, '_flattr_post_category', $_POST['flattr_post_category']);
-		add_post_meta($id, '_flattr_post_hidden',	$_POST['flattr_post_hidden'],	true) or update_post_meta($id, '_flattr_post_hidden',	$_POST['flattr_post_hidden']);
-		add_post_meta($id, '_flattr_btn_disabled',  $_POST['flattr_btn_disabled'],  true) or update_post_meta($id, '_flattr_btn_disabled',  $_POST['flattr_btn_disabled']);
+		add_post_meta($id, '_flattr_post_hidden',	$_POST['flattr_post_hidden'],	true) or update_post_meta($id, '_flattr_post_hidden', $_POST['flattr_post_hidden']);
+		add_post_meta($id, '_flattr_btn_disabled',  $_POST['flattr_btn_disabled'],  true) or update_post_meta($id, '_flattr_btn_disabled', $_POST['flattr_btn_disabled']);
+		add_post_meta($id, '_flattr_post_customurl',  $_POST['flattr_post_customurl'],  true) or update_post_meta($id, '_flattr_post_customurl', trim($_POST['flattr_post_customurl']));
 		
 		return true;
 	}
@@ -85,6 +86,8 @@
 		{
 			$btnDisabled = get_option('flattr_disable', 0);
 		}
+
+		$customUrl = get_post_meta($post->ID, '_flattr_post_customurl', true);
 		
 		include('postmeta-template.php');
 	}
diff -rau flattr/postmeta-template.php flattr_fix/postmeta-template.php
--- flattr/postmeta-template.php	2011-10-12 16:37:20.000000000 +0200
+++ flattr_fix/postmeta-template.php	2011-11-17 16:51:54.929432536 +0100
@@ -1,5 +1,6 @@
-	<input type="checkbox" value="1" name="flattr_btn_disabled" <?php if ((bool)$btnDisabled) { echo 'checked="checked"'; } ?>/>
-	Disable the Flattr button on this post?
+	<input type="checkbox" value="1" name="flattr_btn_disabled" id="flattr_btn_disabled" <?php if ((bool)$btnDisabled) { echo 'checked="checked"'; } ?>/>
+	<label for="flattr_btn_disabled">Disable the Flattr button on this post?</label>
+
 	<br />
 
 	<label for="flattr_post_language"><?php echo __('Language:') ?></label>
@@ -35,7 +36,10 @@
 	<br />
 	
 	<input type="hidden" value="0" name="flattr_post_hidden" />
-	<input type="checkbox" value="1" name="flattr_post_hidden" <?php if ((bool)$hidden) { echo 'checked="checked"'; } ?>/>
-	Hide post from listings on flattr.com
+	<input type="checkbox" value="1" name="flattr_post_hidden" id="flattr_post_hidden" <?php if ((bool)$hidden) { echo 'checked="checked"'; } ?>/>
+	<label for="flattr_post_hidden">Hide post from listings on flattr.com</label>
 	
 	<br />
+
+	<label for="flattr_post_customurl">Custom URL</label>
+	<input type="text" name="flattr_post_customurl" id="flattr_post_customurl" value="<?php echo $customUrl; ?>" />