diff -Nur zabbix-1.6.6.orig/frontends/php/include/images.inc.php zabbix-1.6.6/frontends/php/include/images.inc.php
--- zabbix-1.6.6.orig/frontends/php/include/images.inc.php	2009-09-21 11:58:35.000000000 +0200
+++ zabbix-1.6.6/frontends/php/include/images.inc.php	2009-09-21 11:59:22.000000000 +0200
@@ -39,7 +39,8 @@
 				$row['image'] = $row['image']->load();
 			}
 			else if($DB['TYPE'] == "POSTGRESQL"){
-				$row['image'] = pg_unescape_bytea($row['image']);
+				$row['image'] = stripcslashes(pg_unescape_bytea($row['image']));
+				$row['image'] = str_replace("''", "'", $row['image']);
 			}
 			else if($DB['TYPE'] == "SQLITE3"){
 				$row['image'] = pack('H*', $row['image']);
@@ -153,7 +154,7 @@
 				}
 				else if($DB['TYPE'] == "POSTGRESQL"){
 					$image = pg_escape_bytea($image);
-					$sql='UPDATE images SET name='.zbx_dbstr($name).',imagetype='.zbx_dbstr($imagetype).",image='".$image."'".
+					$sql='UPDATE images SET name='.zbx_dbstr($name).',imagetype='.zbx_dbstr($imagetype).",image=".zbx_dbstr($image).
 						' WHERE imageid='.$imageid;
 				return	DBexecute($sql);
 				}