If I may offer a tip,just on the outside chance that it might work.
I have Launcher Pro PLUS,& the way widgets are resized is by moving the widget around by holding your finger on it & literally forcing it up next to another icon or widget on the screen.When that happens,a 'frame' appears bordering/surrounding the widget.
Then,you can resize the widget,almost just like resizing an image in your GALLERY.Once the widget is to the desired size,press the BACK-UP(ARROW) physical button to set the newly resized widget.
If that doesn't work,try going to the developers website listed w/the app in the MARKET or drop the developer a line at his/her Email address. I've found most developers are very responsive to customer inquiries,regardless if you are using the free or paid version.