I did the job for hagar. He told me he gave me a suit of armor to wear overtop my ark suit. . . . can't find the damned thing. Nor do I know how to change my armor. Playing on the 360. any ideas?

Same. He told me he would give me it, yet as far as I can tell, i dont have it. So yeah, any help would be appreciated.

all that hagar gives you is a couple or armor panels, one for the front and one for the back, it looks like a green piece of metal on you when you see your character, however the proper armor you get in the game is from wellsprings later in the game, so until then you will not really see a difference in your character.

Yeah search function bro. I posted a thread about this, here yesterday and answered my own question.
When you hit wellsprings the mayor will make you go to coffer for clothes...

Just a heads up for the folks that got the anarchy edition - you buy the armor from Coffer after you get the quest from Mayor Clayton. You can buy the first two suit upgrades (light and medium) from Coffer, then the last is bought from the merchant in Subway Town (2nd half). I forget here name though.