How to migrate to Enterprise Library Data Access Application Block

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I have used Data Application Access Block2 in my web application.
Now I download the Library Data Access Application Block. and read the
document.
May be I am stupid, I can't migrate it to Enterprise Library Data Access
Application Block.
The code below is the Data Application Access Block 2, How can I modified
them?
//---------------using Data Application Access Block
2-----------------------------------------------------
using System;
using System.Configuration;
using System.Data.SqlClient;
using System.Data;
using Microsoft.ApplicationBlocks.Data;
namespace CDC
{
/// <summary>
/// DM ªººK*n´y*z¡C
/// </summary>
public class DM

{

public static string
cnnStr=ConfigurationSettings.AppSettings["PubsConnection"];
public static SqlConnection cnn;
public static SqlDataReader dr;

public static SqlDataReader ExecuteReader(string sSql)
{

return SqlHelper.ExecuteReader(cnnStr,CommandType.Text,sS ql);

}

public static DataSet ExecuteDataset(string sCmd)
{
return SqlHelper.ExecuteDataset(cnnStr,CommandType.Text,s Cmd);

}
public static DataView ExecuteView(string sCmd)
{
return
SqlHelper.ExecuteDataset(cnnStr,CommandType.Text,s Cmd).Tables[0].DefaultView
;
}