Aqui el codigo con el que trabajo.
Código HTML:
 //----------------------------------------------------------------------------------
// slideshow component | (c)2003 Armen Abrahamyan | http://abrahamyan.com
// please contact to author for commercial use 
//----------------------------------------------------------------------------------
#initclip
function slideshowClass() {
	this.init();
}
// 
slideshowClass.prototype = new MovieClip();
// initializing  
slideshowClass.prototype.init = function() {
	this.cnt = 0;
	//
	this.create_mc("bg_mc", 400, 260);
	//
	this.create_mc("up_mc", 400, this.title_h);
	this.up_mc._y = this.bg_mc._y-this.bg_mc._height/2-this.title_h/2-5;
	//
	this.cnt++;
	// creating container for loading images 
	this.createEmptyMovieClip("cont_mc", this.cnt);
	this.cont_mc._x = -1300;
	//
	this.mtextFormat = new TextFormat(this);
	this.mTextFormat.align = "left";
	this.mTextFormat.font = this.fname;
	this.mTextFormat.color = this.bcolor;
	this.mTextFormat.size = this.fsize;
	
	this.cont_mc._y = this.bg_mc._y-this.bg_mc._height/2;
	// use this.sp variable to change the speed of motion
	this.sp = 5;
	//------------------------------------------------------
	this.max_cnt = _root.slide_names.length;
	this.current_nm = 0;
	//
	
	this.show_title()
	this.create_next_btn("next_btn",50,this.title_h-4);
	this.create_prev_btn("prev_btn",50,this.title_h-4);
	this.next_btn._y=this.up_mc._y;
	this.next_btn._x=this.up_mc._width/2-this.next_btn._width/2-4
	this.prev_btn._y=this.up_mc._y;
	this.prev_btn._x=this.up_mc._width/2-2*this.next_btn._width
	this.show_loader();
	this.next_img();
};
slideshowClass.prototype.create_mc = function(nm, w, h) {
	this.createRect(nm, 0, 0, w, h, this.mcolor, this.bcolor);
};
//
slideshowClass.prototype.create_next_btn = function(nm, w, h) {
	this.create_mc(nm,w,h);
	this.cnt++;
	this[nm].createTextField("next_txt", this.cnt, -w/2, -h/2-3, w, h+4);
	this[nm].next_txt.type = "dynamic";
	// No se si sirve //this.mTextFormat.font = "Tahoma";
	this.mTextFormat.align = "right";
	this[nm].next_txt.selectable = "false";
	this[nm].next_txt.text = "Siguiente";
	this[nm].next_txt.setTextFormat(this.mtextFormat);
	this[nm].onRollOver=function(){
		this._alpha=50;	
	}
	this[nm].onRollOut=function(){
		this._alpha=100;	
	}
	this[nm].onPress=function(){
		
		this._alpha=100;
		this.clearInterval(this.loadComplate);
		this._parent.next_img();
		
	}
}
//
slideshowClass.prototype.create_prev_btn = function(nm, w, h) {
	this.create_mc(nm,w,h);
	
	this.cnt++;
	this[nm].createTextField("prev_txt", this.cnt, -w/2, -h/2-3, w, h+4);
	this[nm].prev_txt.type = "dynamic";
	this.mTextFormat.align = "left";
	this[nm].prev_txt.selectable = false;
	this[nm].prev_txt.text = "Anterior";
	this[nm].prev_txt.setTextFormat(this.mtextFormat);
	this[nm].onRollOver=function(){
		this._alpha=50;	
	}
	this[nm].onRollOut=function(){
		this._alpha=100;	
	}
	this[nm].onPress=function(){
		
		this._alpha=100;
		this.clearInterval(this.loadComplate);
		this._parent.current_nm -=2;
		if (this._parent.current_nm < 0) this._parent.current_nm =0;
		this._parent.next_img();
		
	}
}
slideshowClass.prototype.createRect = function(nm, x1, y1, w, h, mclr, bclr) {
	this.cnt++;
	this.createEmptyMovieClip(nm, this.cnt);
	this[nm].lineStyle(0, bclr, 100);
	this[nm].beginFill(mclr);
	this[nm].moveTo(x1-w*.5, y1-h*.5);
	this[nm].lineTo(x1+w*.5, y1-h*.5);
	this[nm].lineTo(x1+w*.5, y1+h*.5);
	this[nm].lineTo(x1-w*.5, y1+h*.5);
	this[nm].lineTo(x1-w*.5, y1-h*.5);
	this[nm].moveTo(x1, y1);
	this[nm].endFill();
};
slideshowClass.prototype.next_img = function() {
	//
	this.cont_mc._x = -1300;
	this.up_mc.title_txt.text = _root.slide_titles[this.current_nm];
	this.mTextFormat.align = "left";
	this.up_mc.title_txt.setTextFormat(this.mtextFormat);
	this.cont_mc.loadMovie(this.img_folder+_root.slide_names[this.current_nm]);
	this.current_nm++;
	if (this.current_nm>this.max_cnt-1) {
		this.current_nm = 0;
	}
	clearInterval(this.load_next);
	this.loadComplate = setInterval(this, "show_loading", 100);
};
slideshowClass.prototype.show_loading = function() {
	//
	var b_total = (this.cont_mc.getBytesTotal()/1024);
	var b_loaded = (this.cont_mc.getBytesLoaded()/1024);
	// dysplaying loading information
	this.load_txt.text="Cargando "+Math.floor(b_loaded)+" kb"+" de "+Math.floor(b_total)+" kb";
	this.mTextFormat.align = "center";
	this.load_txt.setTextFormat(this.mtextFormat);
	//
	if ((b_total == b_loaded) && (b_loaded>1)) {
		clearInterval(this.loadComplate);
		this.load_txt.text="";
		this.load_txt.setTextFormat(this.mtextFormat);
		
		this.scale(this.cont_mc._width, this.cont_mc._height);
		this.load_next = setInterval(this, "next_img", this.interval*1000);
	}
};
//  creating motion
slideshowClass.prototype.scale = function(nx, ny) {
	this.onEnterFrame = function() {
		//
		def_x = (nx-this.bg_mc._width)/this.sp;
		def_y = (ny-this.bg_mc._height)/this.sp;
		this.bg_mc._width += def_x;
		this.bg_mc._height += def_y;
		//
		this.up_mc._width = this.bg_mc._width;
		this.up_mc._y = this.bg_mc._y-this.bg_mc._height/2-this.title_h/2-5;
		this.next_btn._y=this.up_mc._y;
		this.next_btn._x=this.up_mc._width/2-this.next_btn._width/2-4
		this.prev_btn._y=this.up_mc._y;
		this.prev_btn._x=this.up_mc._width/2-2*this.prev_btn._width
		//
		if ((Math.abs(this.bg_mc._width-nx)<=.6) && (Math.abs(this.bg_mc._height-ny)<=.6)) {
			this.bg_mc._width = nx;
			this.bg_mc._height = ny;
			//
			this.up_mc._y = this.bg_mc._y-this.bg_mc._height/2-this.title_h/2-5;
			//
			this.cont_mc._x = this.bg_mc._x-this.bg_mc._width/2;
			this.cont_mc._y = this.bg_mc._y-this.bg_mc._height/2;
			//
			this.onEnterFrame = undefined;
		}
	};
};
slideshowClass.prototype.show_loader = function() {
	this.cnt++;
	this.createTextField("load_txt", this.cnt, -200, 0, 400, 40);
	this.load_txt.type = "dynamic";
	this.mTextFormat.align = "center";
	this.load_txt.selectable = false;
	this.load_txt.text = "";
	this.load_txt.setTextFormat(this.mtextFormat);
}
slideshowClass.prototype.show_title = function() {
	this.cnt++;
	this.up_mc.createTextField("title_txt", this.cnt, -this.up_mc._width/2+2, -this.up_mc._height/4-4, 400, 40);
	
	this.up_mc.title_txt.type = "dynamic";
	this.up_mc.title_txt.selectable = false;
	this.up_mc.title_txt.text = "";
	this.up_mc.title_txt.setTextFormat(this.mtextFormat);
}
//-----------
Object.registerClass("slideshow", slideshowClass);
#endinitclip
Gracias
 
