authorization problem

hello guys,
 I am developing an application which uses forms authentication to authenticate the users.i have written the following code in my web.config file to do that.
<authentication mode="Forms">
      <forms name="Sampleform1" loginUrl="default.aspx">
      </forms>
    </authentication>
    <authorization>
      <allow users="*"/>
      <deny users="?"/>
    </authorization>
 
this code is doing well.....if i enter invalid username and password it doesnt allow me to login and redirects to default.aspx(my login page) which it has to. But what i dont understand is.....i want to redirect a valid user to his respective home page. This code above doesnt do that. i tried using ...