VbScript/ASP Classic good OOP Pattern
I am not a big VB person, but I would think that if you give your class a Dispose method you should use it rather than setting it to nothing, I know this is kind of the same thing, but if you aren't going to use the Method don't create the method, it's extra stuff.  if you are going to use it in the future, comment to that effect.

'This Method is for future development
Private Sub Dispose()
End Sub


OR

'TODO: Implement!
Private Sub Dispose()
End Sub


my comment syntax is probably off a little bit.