URL for tabbed browser need help really fast

[assasinshot]

Hi guys i just registered today loving the help ive seen
but now im asking for help ive recently been working on a peice of homework for school and i made a tabbed web browser works fine except i cant get a URL bar to work im happy if it either uses a textbox or a combo box this may help with making a go back and forwad and refresh button if you know any of these please help as im really confused

heres my coding so far:

Private Sub Done(ByVal sender As Object, ByVal e As Windows.Forms.WebBrowserDocumentCompletedEventArgs)
        TabControl1.SelectedTab.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).DocumentTitle
        ComboBox1.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Url.ToString
 
    End Sub
 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim Browser As New WebBrowser
        TabControl1.TabPages.Add("New Page")
        TabControl1.SelectTab(int)
        Browser.Name = "Web Browser"
        Browser.Dock = DockStyle.Fill
        TabControl1.SelectedTab.Controls.Add(Browser)
        AddHandler Browser.ProgressChanged, AddressOf Loading
        AddHandler Browser.DocumentCompleted, AddressOf Done
        int = int + 1
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).GoHome()
    End Sub
 
    Private Sub AddTabToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AddTabToolStripMenuItem.Click
        Dim Browser As New WebBrowser
        TabControl1.TabPages.Add("New Page")
        TabControl1.SelectTab(int)
        Browser.Name = "Web Browser"
        Browser.Dock = DockStyle.Fill
        TabControl1.SelectedTab.Controls.Add(Browser)
        AddHandler Browser.ProgressChanged, AddressOf Loading
        AddHandler Browser.DocumentCompleted, AddressOf Done
        int = int + 1
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).GoHome()
    End Sub
 
    Private Sub RemoveTabToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RemoveTabToolStripMenuItem.Click
        If Not TabControl1.TabPages.Count = 1 Then
            TabControl1.TabPages.RemoveAt(TabControl1.SelectedIndex)
            TabControl1.SelectTab(TabControl1.TabPages.Count - 1)
            int = int - 1
        End If
    End Sub
 
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        ToolStripStatusLabel1.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).StatusText
    End Sub
 
End Class