Problem requesting row using unique id - please help

 Hi Guys,
I've got this problem and i cant resolve it. Ive got a repeater which has a link that takes the unique id for that record and passes it through to another page and displays it in the url, that works fine.
Default.aspx?id={3}
Now all i want to do is use the unique id to display the data in that row for the column jobtitle
code below. Thanks
Imports System.IO
Imports System.Data
Imports System.Data.SqlClient
Partial Class Default3
    Inherits System.Web.UI.Page
    Dim unid, jobtitle As String
    Private Sub page_load(ByVal sender As System.Object, ByVal e As System.EventArgs)
        Dim sqlconnection As New Data.SqlClient.SqlConnection
        Dim sqlcommand As New Data.SqlClient.SqlCommand
        unid = Trim(Request. ...