Ok. I found it. The problem was that it wasn't using your color choice for the border when saving the progress screen (portrait only. landscape seemed fine in my test and in the code).
So..
Update: (b1.1.4)
-Fixed a bug where borders on the progress screen were incorrectly saved.
All you should have to do is unzip the new version (found in my signature) overtop of the old version (replace all). Open your .skin file and save it under a new name. The only file you'll need to copy to the pocketpc is "Progress_BkgdP.png".