No ohhh IMM0008 is the Principal Application form which contains dependent information. That information can also be captured in the Additional Family Information. Since nothing has changed, we can ignore it however the lawyer said the IMM5406 which is the Additional Family Information is fine since nothing has changed. Anyway, myself and my wife will review the documents again this weekend. I hope they can sign it in a week to make sure she's out of the country before March 28.
By the way guys, how did you go about the Pre-paid DHL package?
And thanks everyone for your input. It has been really really insightful.