#1 - Oct. 9, 2010, 11:54 p.m.
Looks like you have not yet completed the quest, 'The Battle for Undercity,' which is the quest that will unphase you, Mezzrow.
You should visit High Overlord Saurfang at Warsong Hold in Borean Tundra to pick up the next quest in the chain. Follow that through until the quest 'The Battle for Undercity' is complete, and that should fix things right up for you. >^.^<