I figured it out. Changed the Upload button link to:
<a href="%encoded-folder%~upload+progress" class=button> and removed the javascript code that creates the ADD/CLOSE Progress Status buttons.
Now, by default, the upload page has the progress status frame. Cool. I don't know a thing about HTML. I'm just cutting, pasting, and changing values to see what happens.
Just one question... can mistakes in HTML coding lend themselves to security problems?