find display ID?

[wice]

I'm using a mangos/trinity-compitable database, and I'm currently trying to add emblems of heroisms to a few bosses. However, I can't find their display IDs within the database. Take for example Kel'thuzad, his ID doesn't even exist in the db.

On arcemu/ascent, creature_names existed and worked great for this. However, it isn't included in this world-db file. So how exactly can I locate these in another way?

Sorry for my newbness.
and oh, sorry for the English. abit tired today ^^

EDIT:
Info:
Core_version: TrinityCore2 Rev: 4239
Core_revision: 4239
db_version: UDB 380 For Trinity