About Receiving An Image From SQL Server 2000 And Displaying It In Aspx Page..................

hi friends,
            i need a code for storing and receiving an image to/fro SQL SERVER 2000 (in C#). i had searched some sites, all are in VB for windows forms not for website. finally i got a code from some site. it is working for storing purpose. not working for receiving purpose. the code for receiving and displaying purpose is
 
(in a fresh page) 
private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
MemoryStream stream = new MemoryStream ();
SqlConnection connection = new
SqlConnection (@"server=INDIAINDIA;database=iSense;uid=sa;pwd=india");
try
{
connection.Open ();
SqlCommand command = new
SqlCommand ("select Picture from Image", connection);
byte[] image = (byte[]) command.ExecuteScalar ();
stream.Write (image, 0, image.Length);
Bitmap bitmap = new Bitmap (stream);
Response.ContentType = "image/gif";
bitmap.Save (Response.OutputStream, ImageFormat.Gif);
}
finally
{
connection.Close ();
stream.Close ();
}
}

what s the problem is.........i'm getting an exception at Bitmap instantiation.
(i.e Bitmap bitmap = new Bitmap (stream);)
exception is "Parameter is not valid" 
what is the problem with that coding? was it correct? do u have any code for this in C#? if so, pls provide that......help me........pls.............