VS 2010 Popup With Image - Sourced From SQL Server

I've got a list box that populates a list of documents - from which after selection user clicks button and a popup window shows documents - well thats the end result.

my code for selection is as follows

Code:
Dim PictureTable As New DataTable
Dim Query As New SqlCommand("Select DocumentType, Document from ClientDocuments where id = @id")
Query.Parameters.AddWithValue("@id", DocumentList.SelectedValue.ToString)
Sleepy.GetSQL(Query, PictureTable)

Dim Row As DataRow
Row = PictureTable.Rows(0)(1)
Dim Picture() As Byte = Row("Document")
Dim stream As MemoryStream = New MemoryStream(Picture)

From here to what kind of popup or method to do I have been unable to figure out..