[AS2] Problem Understanding why not working

[V_D_Gamez]

hello everyone i have this project i am working on it isnt for school or anything its just a hobby thing but i would love to find out what i am doing wrong here
so here is my code

////////////////////////////////////////////////////////
//////////////////// ISO GAME //////////////////////////
///////////////// BY D'n'C GameZ ///////////////////////
/////////////// 2/22/2012 2:45 pm //////////////////////
//////////////// ActionScript 2.0 //////////////////////
////////////////////////////////////////////////////////


////////////////////////////////////////////////////////
////////////////////// LOADS ///////////////////////////
////////////////////////////////////////////////////////
mapHolder= new LoadVars();
mapHolder.onLoad = mapLoad;
mapHolder.load("maps.txt");

////////////////////////////////////////////////////////
/////////////////////// MAPS ///////////////////////////
////////////////////////////////////////////////////////
function mapLoad(){
    gameMap = mapHolder.Map001;
    trace(gameMap); /* trace does work but the
    tiles for the map dont show up at all that
    is what i need help on to get it working
    right and displaying my map */
};

////////////////////////////////////////////////////////
/////////////////////// TILES //////////////////////////
////////////////////////////////////////////////////////
game={tileW:45};
game.TileClass= function(){};
game.TileClass.prototype.clickable=false;
game.TileClass.prototype.frame=100;
game.Tile0= function(){};
game.Tile0.prototype.__proto__=game.TileClass.prototype;
game.Tile0.prototype.clickable=true;
game.Tile0.prototype.frame=1;

/////////////////////////////////////////////////////////
/////////////////////// FUNCTIONS ///////////////////////
/////////////////////////////////////////////////////////
function buildMap(map){
    _root.attachMovie("empty","tiles",++d);
    game.clip=_root.tiles;
    var mapWidth = map[0].length;
    var mapHeight = map.length;
    for(var i=0;i < mapHeight; ++i){
        for(var j=0;j <mapWidth; ++j){
            var name = "t_"+i+"_"+j;
            game[name]= new game["Tile"+map[i][j]];
            game.clip.attachMovie("tile", name, i*100+j*2);
            game.clip[name]._x = (j-i)*game.tileW;
            game.clip[name]._y = (j+i)*game.tileW/2;
            game.clip[name].gotoAndStop(game[name].frame);
            game[name].depth=(j+i)*game.tileW/2*300+(j-i)*game.tileW+1;
        }
    }
}

//////////////////////////////////////////////////////////
///////////////////// INITIALIZE /////////////////////////
//////////////////////////////////////////////////////////
                    buildMap(gameMap);//comand to set map up
                    
                    
//////////////////////////////////////////////////////////
//////////////////// INSIDE TEXT FILE ////////////////////
///////////////// TEXT FILE NAME maps.txt ////////////////
//////////////////////////////////////////////////////////
/*
Map001=[[0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0],
        [0,0,0,0,0,0,0,0,0,0]
        ];
*/

//////////////////////////////////////////////////////////
////////////////// FAST OBJECT SETUP /////////////////////
//////////////////////////////////////////////////////////
/*
in order for this to work you need to make 2 movieclips
 movieclip 1 name(whatever you want) export for actionscript
 identifier name as (empty)
 movieclip 2 name(whatever you want) export for actionscript
 identifier name as (tile)
 
 and draw a tile in the tiles moviclip
 */

any help on understanding this would be great thanks

[rrh]

Put your call to buildMap inside your mapLoad function. What's happening is you're calling buildMap before mapHolder is finished loading so gameMap is empty.