Tiny correction.... we don't use the Id, we use the Obj Id... thanks Kerberos.

L2_GameServer_T1/java/net/sf/l2j/gameserver/model/actor/instance/L2NpcInstance.java

@@ -667,7 +667,7 @@ public class L2NpcInstance extends L2Character
                     {
                     	Quest[] qlsa = getTemplate().getEventQuests(Quest.QuestEventType.QUEST_START);
                     	if ( (qlsa != null) && qlsa.length > 0)
-                    		player.setLastQuestNpcObject(getNpcId());
+                    		player.setLastQuestNpcObject(getObjectId());
                         Quest[] qlst = getTemplate().getEventQuests(Quest.QuestEventType.ON_FIRST_TALK);
                         if ( (qlst != null) && qlst.length == 1)
                             qlst[0].notifyFirstTalk(this, player);