It's kind of like beating a dead horse. Python is already
cross platform to begin with (which is why I chose to work with it), so making binaries seems a bit counter productive. If you absolutely need
them, I can make a Windows binary today (I can write up how to make a Mac binary).
Here's an updated screenshot of the program. I added more progress markers (it highlights the current item that is being processed in progressively darker shades of green after each pass. It first analyzes, the does OCR, and then binds, so there are three shades of green), a default icon for each page (as a placeholder while it's thumbnailing), and some menu options. Only the "File Previews" option works for now, and it's a bit buggy:
Most of the menu and other options are not functional (except the DjVu Encoding options. They all work.), but I'm still adding PDF support. I'll make a Windows binary when I have access to Windows.