I've seen this asked quite often - "how do I move all of the layers and frames of my animation together at the same time?" - and basically there are two solutions to this problem.
1) You can place all of the animation within a new MovieClip symbol.
select all layers and frames by right-clicking the timeline and choose 'select all frames' - then right-click and choose 'copy frames'. Now create a new symbol under - insert > new symbol - right-click the first frame and choose 'paste frames'. Then return to the main timeline and delete all the layers you just placed within the symbol, create a new layer and drag the new symbol from the Library to the stage - you will now be able to position the animation wherever you would like.
2) You can use the 'Edit Multiple Frames' function to move everything at once.
With the playhead in frame one, turn on 'Onion Skinning' (the button on the left of the bar just below the timeline that looks like two boxes with one 'full' box) with onion skinning turned on, drag the 'viewing marker' on the right ('attached to' the playhead marker above the timeline) to the last frame of the timeline. Next, turn on the 'Edit Multiple Frames' button (the button on the right of the bar just below the timeline that looks like two 'full' boxes) -also leave onion skinning on- now click-drag from the first layer-last frame - to the last layer-first frame to select the entire timeline, with the playhead ending up back in the first frame. click on a any piece on the stage and you will be able to position everything that is selected all at once. However you will need to repeat this procedure for any move and you will also 'see' everything at the same time, which can make 'visual' positioning difficult.
3) You can re-keyframe every piece by hand, one at a time ... JK! LOL!

