diff --git a/fp-includes/core/core.bplustree.class.php b/fp-includes/core/core.bplustree.class.php
index 78c9f01..fbe21fb 100755
--- a/fp-includes/core/core.bplustree.class.php
+++ b/fp-includes/core/core.bplustree.class.php
@@ -1778,6 +1778,8 @@ class BPlusTree {
 	 */
 
 	function setitem($key, $val) {
+		if (!is_numeric($val))
+			trigger_error("Second parameter must be numeric", E_USER_ERROR);
 		$curr_length = $this->length;
 		$root =& $this->root;
 		if (is_null($root)) trigger_error("not open", E_USER_ERROR);
diff --git a/fp-includes/core/core.entry.php b/fp-includes/core/core.entry.php
index bf3205d..b7f9374 100755
--- a/fp-includes/core/core.entry.php
+++ b/fp-includes/core/core.entry.php
@@ -109,7 +109,7 @@
 			if (!$update_title) 
 				$seek = $main->has_key($key, $val);
 		
-			if (is_numeric($seek))
+			if (!is_numeric($seek))
 				$seek = $main->setitem($key, $val);
 			if (isset($entry['categories']) && is_array($entry['categories'])) {
 				foreach ($entry['categories'] as $cat) {
diff --git a/fp-includes/core/core.static.php b/fp-includes/core/core.static.php
index b80398c..4cb4f9b 100755
--- a/fp-includes/core/core.static.php
+++ b/fp-includes/core/core.static.php
@@ -35,8 +35,8 @@
 	function static_save($entry, $id, $oldid=null) {
 		$fname = STATIC_DIR . $id . EXT;
 		
-		$entry['CONTENT'] = apply_filters('content_save_pre', $entry['CONTENT']);
-		$entry['SUBJECT'] = apply_filters('title_save_pre', $entry['SUBJECT']);
+		$entry['content'] = apply_filters('content_save_pre', $entry['content']);
+		$entry['subject'] = apply_filters('title_save_pre', $entry['subject']);
 	
 		$str = utils_kimplode($entry);