The layout provided only has a background image set for the Main screen, but the layout also contains screens for pre- and post-tournament. I assume those screens should have a background image as well.
To see the main screen (while not running a tournament), close the Settings window and press the "1" key. This will switch the display to the first screen listed on the Layout tab and lock the screen. If you press Ctrl+L, the screen will be unlocked and the display will switch to the screen appropriate for the situation, which will be the pre-tournament screen if you don't have a tournament currently running.
On the Layout tab, select the pre-tournament screen and press the Background button. Under the image preview (which should read "No Image"), press the Browse... button and select the BPC_UltraDeluxe.jpg file. Press OK. Repeat with the post-tournament screen. Save the layout.