Start of a silly Galaga style game

[aurel]

Ok Marcus
I download code and put it into N7 editor then i get this error  about xForm  

Code:

            draw image xform e.img, e.pos.x + 7, e.pos.y + 7, 1, 1, e.a, 7, 7

and here is how compiler output looks :

Welcome to the second most primitive IDE thinkable!
Compiled with n7 version 22.07.08b

Saved "D:\ARCHIVE\N7_220708\N7\Galaga.n7"
Saved "D:\ARCHIVE\N7_220708\N7\Galaga.n7"
Compiling
"D:\ARCHIVE\N7_220708\N7\Galaga.n7"
n7: Galaga.n7:186: error: Undeclared identifier 'xform

so why is undeclared ?
do i must download latest version?