i dont really know what the problem was or how i fixed it. =) but i think i know what to do.
move the pivot to the desired center of rotation in maya, import to udk, if you dont see the pivot or the pivot doesnt stick in udk, try again, maybe restart, once it starts acking normal and as one would expect, it is really easy.
oh yeah, i finally got the zombies to attack the door simply by putting a pathnode right in the middle of the door.
oh yeah, and the reason i couldnt weld the door, i had the closed position set to key 1 and the open position set to key 0, apparently only key 0 is weldable so that has to be the closed position. funny though, sometimes in game i'd walk up to the door and it would instantaniously flash close. I noticed that by trying to weld the door in the open position.
So, that brings up a question, how do you set the default position of the door to open?