Right now, it is always returning the mainform which launches the other forms. Some of the launched forms are modal and some are modeless.

One other idea for you that I just thought of. _Screen.Activeform does not change to the form being instantiated until its init() finishes. So if you check _Screen.Activeform in the load() or init() of the form currently being launched, it will refer to the calling form and not the current form.