Unfortunately your answer still isn't clear.
Are you saying you have added a Sprite Object and are using that as your button? If so, the standard Mouse Object or Touch Object events would handle the click.
If you used the actual Button Object, then you must use the Button Object's own events.
The quickest way to resolve this would be for you to save your project as a single .capx file and upload it here, via one of the many free hosting companies such as Dropbox.