Clues:
-The screen is 400x240 pixels wide.
-The command for placing a sprite is SPSET Management number, ID number
-The command for moving a sprite is SPOFS Management number, X, Y
The management number is the number you refer to when using sprite commands. A number from 0 to 511. This way when you use SPOFS with the right management number it won't pick some random other sprite.
The ID number is what your sprite looks like. It's from 0 to 4095, if I remember correctly.
Or, to make the code setting the flowers somewhere easier, you could use
sphome <id>, 32, 24
to make the center the origin of the sprite. (you would only have to do
spofs <id>, 200,120
)
Also, use
spcolor <id>, rgb(255, 255, 255)
because the sprite will have nasty black boxes on the edges if you don't use spcolor.