Joined: 22-July 03
From: Xbox 360 v2, v3 and v4 now
Member No.: 51577
Xbox Version: v1.1
360 version: v4.0 (jasper)
You just need the latest for the region of the game you are playing. As each TU comes out it includes the data from the previous TU in it, so like TU #2 has the update for TU1 and 2, TU #3 has the update for TU1, 2 and 3...on and on.