some time ago I asked the author the same quesion, here is his answer:
The .rhtml files it uses are in the scaffolds folder inside the
plugin, but they are generic and not custom to a specific model. It
isn't a generator, so it doesn't produce controller and view files.
It is a collection of methods that adds actions to a controller as
well as necessary support code.
The plugin is designed to provide a simple but powerful administrative
front end to the models. It supports many customization options. If
you find that there is a customization option that is missing, please
send in a patch and I'll review it.
Thanking you for your valid information. I can able to see the action methods by below command, but not able to customize the view pages.
script/runner "puts ActionController::Base.scaffold_all_models(:generate=>true)"
Let me know, are there any alternatives for this ?