Wow I just had one of the most ridiculous convos with the financial aid office about my letter's whereabouts. The lady basically said that mine went out last week, (and yelled to someone in the office, "HOLD UP I"M ON THE PHONE,") but she's "sent over 600 letters" so she will just keep her eyes open for a "return to sender" letter w/ my name on it. I asked her to make sure that my permanent address was the one used, and she said she will look into it later.
Wow.
Catz-
My experience with the financial aid office is that you have to be pretty assertive with them to get things done. Maybe you should ask them to send you an electronic version. With over 600 letters, at least one of them was bound to get lost...