Wesley was helpful but it's a good decision not to involve W&H (tell them too much). Wesley is still a watcher in his heart. :)
Heh - it was said in the last Castle episode here (first season, last episode I guess) if nobody has files, you'll still find things in the Accounting Department. Clever of Wesley. *nods* If W&H didn't pay much the seller knew he would get the amulet back.
I'm not good with the names of Angel but if Cyvus Vail got a lot of money when Angel joined W&H than he is the one that did the spell, 'hiding' Connor, or?
A big gun they are fighting against.