I guess that you should see a way of inserting HTML code with the SWF file included.

Besides, Flash 7 compiles an .EXE file as an option. But I am not sure that it could be embedable.

After learning all about AS and its limitations, you might end up forgetting about Tk and using Flash as the visual part of it all, to overcome the embeding thing.

I like the visual possibilities of Flash MX, but I think that you are limited to just supplying nearly all the required data by generating plain text files with value pairs or XML. Don't expect much more of an exe flash file combined with Tk! I would choose one or the other.