When you use the
load bitmap command, that doesn't actually display anything on the screen. All that does is load the image from your disk into memory (the help file is very misleading for this command, as a lot of the help files unfortunately are). To actually draw it, you need to use another command.
I recommend using
load image instead of
load bitmap, by the way. Use
load bitmap if you want to edit an image, and use
load image if you just want to draw it on the screen.
For example:
sync on
rem Load an image from the hard disk into memory
rem This image is now known as '1'
load image "path/image.jpg", 1
rem Load another image, which we call '2'
load image "path/otherimage.jpg", 2
do
rem Draw the image called '1' onto the screen at the coordinates (0, 0)
paste image 1, 0, 0
rem Synchronize the drawing you've done onto the user's actual monitor screen
sync
loop
EDIT: code tags