Problem with custom concole

I was made new interface for game console, but if I import it to map, it seems like this
(That black square is bug, It should be transparent... And portrait of unit is absolutly invisible)
I was try Alpha Mapping but it has no effect
can someone help me plz? plz, I was work on it for three days

EDITED: uh, nothing, I am fool sry :)
When I was try Alpha Mapping then I save model as JPG. or what...
Sry for spam, to hell with this thread :)
thx for reading

You never, EVER save any sort of skin as a JPEG. You need to use TGA, because TGA saves the alpha, whereas JPEG doesn't. Try saving as TGA, then see if that solves it.

EDIT: If that doesn't solve it then you just need to make your interface bigger, because wc3 stops rendering there.