Mappress and Widgets

I am trying to get mappress to show google map in the widgets. I edited the file so it would fit.
I put mappress, of the map I wanted, into the widget.
It did not show up, the heading I had on the widget showed up, but not the map.
When I go to a page, that I have google map on, the map will also show on the widget, thats on that page.
When I go to a different page, with a different google map on it, that map will show up in the widget.

I want a different map to show up on the widget, than is on the page.

Help please as this is important to me,
Thanks