Index: t3lib/tceforms/class.t3lib_tceforms_tree.php
===================================================================
--- t3lib/tceforms/class.t3lib_tceforms_tree.php	(revision 9259)
+++ t3lib/tceforms/class.t3lib_tceforms_tree.php	(revision )
@@ -61,6 +61,7 @@
 		);
 		$treeDataProvider->setSelectedList(implode(',', $selectedNodes));
 		$treeDataProvider->initializeTreeData();
+		$treeDataProvider->setGeneratedTSConfig($tceForms->setTSconfig($table, $row));
 
 		$treeRenderer = t3lib_div::makeInstance('t3lib_tree_Tca_ExtJsArrayRenderer');
 		$tree = t3lib_div::makeInstance('t3lib_tree_Tca_TcaTree');
Index: t3lib/tree/tca/class.t3lib_tree_tca_databasetreedataprovider.php
===================================================================
--- t3lib/tree/tca/class.t3lib_tree_tca_databasetreedataprovider.php	(revision 9400)
+++ t3lib/tree/tca/class.t3lib_tree_tca_databasetreedataprovider.php	(revision )
@@ -80,6 +80,24 @@
 	protected $idCache = array();
 
 	/**
+	 * uidWhiteList contains all Uids which may be allowed to display according to
+	 * beUser Rights and foreign_table_where
+	 * @var array $uidWhiteList
+	 */
+	protected $uidWhiteList = array();
+
+	/**
+	 * node sort values (the orderings from foreign_Table_where evaluation)
+	 * @var array
+	 */
+	protected $nodeSortValues = array();
+
+	/**
+	 * @var array TCEforms compiled TSConfig array
+	 */
+	protected $generatedTSConfig = array();
+
+	/**
 	 * Sets the label field
 	 *
 	 * @param string $labelField
@@ -239,13 +257,14 @@
 			$node->setExpanded($this->isExpanded($basicNode));
 		}
 		$node->setSelectable(!t3lib_div::inList($this->getNonSelectableLevelList(), $level));
+		$node->setSortValue($this->nodeSortValues[$node->getId()]);
 		$node->setIcon(t3lib_iconWorks::mapRecordTypeToSpriteIconClass($this->tableName, $row));
 		$node->setId($basicNode->getId());
 		$node->setParentNode($parent);
 		if ($basicNode->hasChildNodes()) {
 			$node->setHasChildren(TRUE);
 
-			$childNodes = t3lib_div::makeInstance('t3lib_tree_NodeCollection');
+			$childNodes = t3lib_div::makeInstance('t3lib_tree_SortedNodeCollection');
 			foreach ($basicNode->getChildNodes() as $child) {
 				$childNodes->append($this->buildRepresentationForNode($child, $node, $level + 1));
 			}
@@ -261,6 +280,7 @@
 	 */
 	public function initializeTreeData() {
 		parent::initializeTreeData();
+		$this->generateUidWhitelist();
 
 		$this->treeData = t3lib_div::makeInstance('t3lib_tree_Node');
 		$this->treeData->setId($this->getRootUid());
@@ -327,7 +347,7 @@
 
 		$allowedArray = array();
 		foreach ($children as $child) {
-			if (!in_array($child, $this->idCache)) {
+			if (!in_array($child, $this->idCache) && in_array($child, $this->uidWhiteList)) {
 				$allowedArray[] = $child;
 			}
 		}
@@ -338,6 +358,21 @@
 	}
 
 	/**
+	 *
+	 */
+	protected function generateUidWhitelist() {
+		$res = t3lib_BEfunc::exec_foreign_table_where_query(
+			$GLOBALS['TCA'][$this->getTableName()]['columns'][$this->getLookupField()],
+			$this->getLookupField(),
+			$this->getGeneratedTSConfig(),
+			''
+		);
+		while ($tempRow = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
+			$this->uidWhiteList[] = $tempRow['uid'];
+		}
+		$this->nodeSortValues = array_flip($this->uidWhiteList);
+	}
+	/**
 	 * Gets related records depending on TCA configuration
 	 *
 	 * @param  $row
@@ -371,7 +406,7 @@
 						$columnConfiguration['foreign_table'],
 						" (CONCAT(','," . $columnConfiguration['foreign_field'] . ",',') LIKE '%," . intval($uid) . ",%' "
 							. (intval($uid) == 0 ? (" OR " . $columnConfiguration['foreign_field'] . " = ''") : '' )
-							. ") " . t3lib_BEfunc::deleteClause( $columnConfiguration['foreign_table'])
+							. ") "
 					);
 					foreach ($records as $record) {
 						$relatedUids[] = $record['uid'];
@@ -382,7 +417,7 @@
 						$columnConfiguration['foreign_table'],
 						" (CONCAT(','," . $this->getLookupField() . ",',') LIKE '%," . intval($uid) . ",%' "
 							. (intval($uid) == 0 ? (" OR " . $this->getLookupField() . " = ''") : '' )
-							. ") " . t3lib_BEfunc::deleteClause( $columnConfiguration['foreign_table'])
+							. ") "
 					);
 					foreach ($records as $record) {
 						$relatedUids[] = $record['uid'];
@@ -395,7 +430,7 @@
 					$columnConfiguration['foreign_table'],
 					" (CONCAT(','," . $this->getLookupField() . ",',') LIKE '%," . intval($uid) . ",%' "
 						. (intval($uid) == 0 ? (" OR " . $this->getLookupField() . " = ''") : '' )
-						. ") " . t3lib_BEfunc::deleteClause( $columnConfiguration['foreign_table'])
+						. ") "
 				);
 				foreach ($records as $record) {
 					$relatedUids[] = $record['uid'];
@@ -435,7 +470,7 @@
 					$records = $GLOBALS['TYPO3_DB']->exec_SELECTgetRows(
 						'uid',
 						$columnConfiguration['foreign_table'],
-						$columnConfiguration['foreign_field'] . '=' . intval($uid) . ' ' . t3lib_BEfunc::deleteClause($columnConfiguration['foreign_table'])
+						$columnConfiguration['foreign_field'] . '=' . intval($uid) . ' '
 					);
 					foreach ($records as $record) {
 						$relatedUids[] = $record['uid'];
@@ -451,6 +486,24 @@
 		return $relatedUids;
 	}
 
+	/**
+	 * setter for the TSConfig from TCEforms
+	 * used to evalualate and replace markers in foreign_table_where
+	 * @param array $generatedTSConfig
+	 * @return void
+	 */
+	public function setGeneratedTSConfig(array $generatedTSConfig) {
+		$this->generatedTSConfig = $generatedTSConfig;
-}
+	}
 
+	/**
+	 * getter for the TSConfig from TCEforms
+	 * @return array
+	 */
+	public function getGeneratedTSConfig() {
+		return $this->generatedTSConfig;
+	}
+
+}
+
 ?>
\ No newline at end of file