Pokemon Sprites Help?, With Pokedspic!

I use PokedsPic on heargolds pokegra.narc file and i replace lugia sprites with this (made with gimp using lugia pallet)
and
yet when i try any way any program (even paint.net) i get this
any help? if so how did you do it?

Replying to #1

What? i don't understand!

Replying to #2

i mean is i try and use pokedspic on lugia and then i get missingno