basicaly there is a movieclip holding multiple movieclips with animations that pass from right to left making the overall registration point of the parent MC to somewhere right of the stage
in the parent movieclip there is a background that is the exact size and placement of the stage and the top left of that background is where the parents registration point is being loaded at..I
I'm not sure if this has any relivance but i defined the movieclip as a variable and placed that variable at the specified coords..
PLevel.x = w/2;
PLevel.y = h;
where w is the max width of screen and h is the min height
my registration for that moveclip would be the bottom of the movieclip centered on the stage background