Aim Ad Hack 3.67
If you [don't want to | can't] use GAIM and are too cheap to pay the $5 for DeadAIM, then Aim Ad Hack 3.67 is your answer to an Ad-free AIM experience. (Frankly, that's all I ever really wanted from DeadAIM. And singe GoogleDesktop logs my AIM conversations anyway, this is almost the best of both worlds!)