Bootscreen1a is the black image with "Starting Windows" on it
Boota is the cloud image
1075360_moraine is the stone cropping.
I would like to put bootscreen1a on the top of boot2a and put 1075360_moraine upside in the square of bootscreen1a.
So you want to put the cloud image on top of the black image, delete the black from the black image and put the rock image "Upside"
(whatever that means) in the white square of the black image???????????
Huhh?
Assuming upside
does not mean upside down, and assuming you want the words "Starting Windows" included this is what I can decipher from your request.
Is this really what you want or would you like to explain yourself a little better?