Nostalrius Begins - Quality wow vanilla realm (1.12)

Greetings
im on the Quest Scarlet Subterfuge in Western Plaguelands.
Its a long Chain and i was in Strath.
Now i want to talk to Highlord Taelan Fordring to end the quest with the Scarlet Illusuion on me. But he is bugged. Sitting on his mount in the Mardenholde Keep and im not able to interact with him.

so need help !

npc=1842
http://db.vanillagaming.org/?npc=1842
press bugtracker and register
add ur in game char lvl class race etc date and a printscreen if posible
maybe this way u will speed up the process for them to help u