Yes - to do so, navigate to the folder:
C:\MediaLab\Graphics
Try swapping the names of the files 'goback.bmp' and 'continue.bmp'. Additionally - you may have to edit the image to change the direction of the arrow associated with the text.
MediaLab uses these graphics to render the Go Back and Continue text at the bottom of the screen.
You may need to also try changing the graphics used within the folder for the language you're using.