Why would you need to open them in notepad, which is not a graphics editing program?
If you're wanting to add text to an image, you need to use some type of graphics program.
From EScribe, click themes. Them select which default image you want to change by clicking load.
Find where you're stored image is and open it from there.
The image should show up in EScribe to give you an idea of what it will look like on the screen.