the wizard will only add the delete button to the detail or results pages, it will not add the button to the update page, you will need to do this manually.
like i said, the code I gave was an example of how it is done on the results pages that i created.
you will need to modify the code to fit your pages, using the correct recordset references and correct css.
what i would do is first worry about creating a form that deletes the record, then worry about making it a popup using CSS.