VB.NET ArrayList.contains(...) Do this not use the "Equals(ByVal obj as Object)" Method????

Ok, I am extremely confused here :)  I come from a strong Java background (by strong, I mean I have a good understanding on how java works as a OOP language), and recently I have been learning how to use the .NET framework.  I am currently having problems with ArrayList Class, specifically the "Public Function Contains(ByVal value As Object) As Boolean".  

Here are parts of my current code.

in my Name Class:

 ' I am assuming this overrides the System.Object.Equals method.... if
'  it doesnt, than this is probably my problem :)

 '  Below is the code for the Name Class.  Which is in the same code 'file' as another class.. I dont
 '  think this makes a difference, but am mentioning it encase.

Public Class MyOtherClass

.... ' Other class data and methods...etc

End Class

Public Class Name
    Private First As String
    Private Last As String

    Public Sub New(ByVal First As String, ByVal Last As String)
        Firstname = First
        Lastname = Last
    End Sub

    Public Overloads Function ToString() As String
        Return Me.Last & ", " & Me.Last
    End Function

    Public Overloads Function Equals(ByVal obj As Object) As Boolean

        Dim name As Name

'  Ignoring types until I can get this part working....
'  In my test, I have ONLY sent Name objects to this method.

        name = CType(obj, Name)
        If Me.First.ToLower.Equals(name.First.ToLower) And _
           Me.Last.ToLower.Equals(name.Last.ToLower) Then
            Return True
            '  End If
        End If
        Return False
    End Function


    Public Property Firstname() As String
        Get
            Firstname = First
        End Get
        Set(ByVal Value As String)
            If Value.Equals("") Then
                Throw New MySql.MySqlException("Please Enter a valid firstname!")
            End If
            First = Value
        End Set
    End Property

    Public Property Lastname() As String
        Get
            Lastname = Last
        End Get
        Set(ByVal Value As String)
            If Value.Equals("") Then
                Throw New MySql.MySqlException("Please Enter a valid lastname!")
            End If
            Last = Value
        End Set
    End Property

End Class


'  Now in another file I have a form that has an variable:

Public myNames as Arraylist

....and here is part of that form class

'  I click on a button and it calls this function,  however, it NEVER returns true for the expression
    Private Sub addName(ByVal obj As Name)
        ' Adds the name to the mynames arraylist

        If myNames.Contains(obj) Then
            Throw New MySql.MySqlException("Name already exists in the list!")
        End If
        myNames.Add(obj)   ' Adds object to the list
        Call refreshList()       ' refreshins certain feilds.
    End Sub



I can add the same name over and over again, and whenever I use the .contains function, it never returns true....  I am either missing something very basic with how .net uses the equals method or I am missing something very simple in my own code, either way I am fed up.....so here I am.  I've also had a few drinks since I have started tonight, that could be the reason too :)