1) ShowImage(n) should be in main and would be triggered on pickup.
2) How many images are you using? You show "12" in your script, if it's only 1 image and it's called "000.png" that would be ShowImage(0)
3) Your script has nothing in init or main.
It might look like this
function readnotes_init(e)
LoadImages("notes",0)
SetImagePosition(0,0)
SetImageAlignment(1)
end
function readnotes_main(e)
if g_KeyPressE == 1 then
ShowImage(image_number)
end
end
Note this is not a proper working script without adding more (it's off the top of my head). I could do a full tested script if you need but these are the 3 most glaring issues I see that may get you on your way.
Development/ Gaming Rigs
Sys 1: i7-4770 (3.5)/16Gb/128 SSD/3Tb/970gtx/2 x 23, 1 x 27 LCD - Sys 2: i7/8Gb/670gtx/1.5Tb/1 x 23 LCD - Sys 3: Amd Quad/8Gb/645gtx/1Tb/30" LCD