Quite easily! You need to load your image using LOAD IMAGE, and then set it as a sprite on the screen, using the SPRITE command. Use variables as the x and y positions, and change these when you press keys. For example:
sync on
`manual syncing makes the program run smoother
sync rate 30
`set a frame rate of 30fps
load image "image.bmp",1
`load image.bmp as image number 1
do
if leftkey()=1 then x#=x#-1
if rightkey()=1 then x#=x#+1
if upkey()=1 then y#=y#-1
if downkey()=1 then y#=y#+1
`change the x# and y# variables when keys are pressed
sprite 1,x#,y#,1
`put sprite number 1 at position (x#,y#), using image number 1
sync
loop
`update everything and loop round
Once I was but the learner,
now, I am the Master.