here's the code for the last posting!! :) if you correct it please let me know!! thanks in advance!!!

using System;
using System.Web;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.ComponentModel;


namespace Cohete.HttpInputFileReloaded
{
    [DefaultProperty("Text"),ToolboxData("<{0}:HttpInpu tFileReloaded runat=server></{0}:HttpInputFileReloaded>")]
    public class HttpInputFileReloaded : System.Web.UI.WebControls.WebControl,INamingContai ner
    {
        public TextBox txtRuta = new TextBox();
        public ImageButton imgBtn = new ImageButton();
        public HtmlInputFile inpFile = new HtmlInputFile();

        [Category("Appearance"), Description("Clase para el TextBox")]
        public string TextBoxClass
        {
            get
            {
                EnsureChildControls();
                return txtRuta.CssClass;
            }
            set
            {
                EnsureChildControls();
                txtRuta.CssClass = value;
            }
        }
        [Category("Data"), Description("Archivo a transferir al servidor")]
        public HttpPostedFile PostedFile
        {
            get
            {
                if (inpFile.PostedFile.InputStream.Length != 0)
                {
                    return inpFile.PostedFile;
                }
                else
                {
                    return null;
                }
            }
        }
        [EditorAttribute(typeof(System.Web.UI.Design.UrlEdi tor), typeof(System.Drawing.Design.UITypeEditor)),
        Category("Appearance"), Description("Ruta en la que se encuentra la imagen del boton")]
        public string RutaImagen
        {
            get
            {
                EnsureChildControls();
                return imgBtn.ImageUrl;

            }
            set
            {
                EnsureChildControls();
                imgBtn.ImageUrl = value;
            }
        }

        protected override void CreateChildControls()
        {
            txtRuta.ID = "txtRuta";
            txtRuta.ReadOnly = true;
            txtRuta.Enabled = false;
            Controls.Add(txtRuta);
            inpFile.ID = "inpFile";
            inpFile.Attributes.Add("style","display:none");
            inpFile.EnableViewState = true;
            Controls.Add(inpFile);
            imgBtn.ID = "imgBtn";
            Controls.Add(imgBtn);
        }

        protected override void OnPreRender(EventArgs e)
        {
            if(!this.Page.IsClientScriptBlockRegistered("HtmlI nputFileCode"))
            {
                string strScript = "<script language=\"JavaScript\" type=\"text/javascript\">" +
                    "function HandleFileButtonClick(InputName,TextName)" +
                    "{" +
                    " document.getElementById(InputName).click(); " +
                    " document.getElementById(TextName).value = document.getElementById(InputName).value; " +
                    "} " +
                    "</script>";
                this.Page.RegisterClientScriptBlock("HtmlInputFile Code",strScript);
            }
            imgBtn.Attributes.Add("OnClick","javascript:Handle FileButtonClick('" + this.ID + "_" + this.inpFile.ID + "','" + this.ID + "_" + this.txtRuta.ID + "');");
        }

        protected override object SaveViewState()
        {
            EnsureChildControls();
            object[] state = new object[2];
            object objBase = base.SaveViewState();
            state[0] = objBase;
            state[1] = txtRuta.Text; ;
            return state;
        }

        protected override void LoadViewState(object savedState)
        {
            object[] state = (object[])savedState;
            base.LoadViewState (state[0]);
            EnsureChildControls();
            txtRuta.Text = state[1].ToString();
        }

        public void SaveAs(string FileWithPath)
        {
            if (inpFile.PostedFile.InputStream.Length != 0)
            {
                inpFile.PostedFile.SaveAs(FileWithPath);
            }
        }
    }
}