Odd Function Problem, HELP!

[unrealhacker12]

"//Runs every frame " the add eventlisteners in in the other doc

var t5:MovieClip = new trail5;
addChild(t5);
var t4:MovieClip = new trail4;
addChild(t4);
var t3:MovieClip = new trail3;
addChild(t3);
var t2:MovieClip = new trail2;
addChild(t2);
var t1:MovieClip = new trail1;
addChild(t1);
var player:MovieClip = new player_art;
addChild(player);
var cursor:MovieClip = new cursor_art;
addChild(cursor);
//Including the AS files
include "AS/rockets_imp.as"

var XS:Number = 0;
var YS:Number = 0;
var ACC:Number = 4;
var DEC:Number = .8;
var vBox:Number = 8;
var trail_offset:Number = 2;
var key:KeyObject = new KeyObject(stage);

stage.addEventListener(Event.ENTER_FRAME, eachFrame);
Mouse.hide();

function eachFrame(e:Event):void{
    //HERE!!!
    timedSpawn();
    moveBarriers();
    cursor.x = mouseX;
    cursor.y = mouseY;
    player.x += XS;
    player.y += YS;
    if(mouseX > player.x -vBox){
        XS += ACC;
    }
    if(mouseX < player.x +vBox){
        XS -= ACC;
    }
    if(mouseY > player.y -vBox){
        YS += ACC;
    }
    if(mouseY < player.y +vBox){
        YS -= ACC;
    }
    t1.x -= (t1.x-player.x) / trail_offset;
    t1.y -= (t1.y-player.y) / trail_offset;
    t2.x -= (t2.x-t1.x) / trail_offset;
    t2.y -= (t2.y-t1.y) / trail_offset;
    t3.x -= (t3.x-t2.x) / trail_offset;
    t3.y -= (t3.y-t2.y) / trail_offset;
    t4.x -= (t4.x-t3.x) / trail_offset;
    t4.y -= (t4.y-t3.y) / trail_offset;
    t5.x -= (t5.x-t4.x) / trail_offset;
    t5.y -= (t5.y-t4.y) / trail_offset;
    XS *= DEC;
    YS *= DEC;
} 

Could you explain how I can do the array instead?