Login Background problem

Hello everyone i changed the background login from a modified client but i cant see the full background does anyone know why?please i will give a thanks :/

Öh, you can find many HowTo's mate. Modified clients are always easy to change..

i already changed it but i cant see the whole background just the half of it

Your picture is too big.

yeah i fixxed it can you check my threat here and tell me if you know i will give you another thanks please:[Only registered and activated users can see links. Click Here To Register...]