Assets location

[Tide]

Hi all. First question and a newb question from me:

Where are the tga files stored? Is there a UI pack or kit like in EQ2? I read the info on the strings, but is there anyways to actually see the individual graphics files? I'm just not sure how to proceed -- old school dimensions guessing?

I just got an invite last weekend for the recent stress test and am unable to register/login to the Beta boards so I was unable to look for info there. Thx.