SPRITEXY
print #w.g, "spritexy SpriteName 100 137";
OR
x=100:y=137
print #w.g, "spritexy SpriteName ";x;" ";y

This causes the sprite called SpriteName to be drawn at position x, y the next time the display is updated with the DRAWSPRITES command.

SPRITEXY?
print #w.g, "spritexy? SpriteName"
input #w.g, x, y
OR
print #2.g "spritexy? SpriteName x y"
This obtains the coordinates of the sprite called SpriteName and places them into the variables x and y.