BG Swapping

[Lockstin]

how would i do this. i made a texture hack on yoshis island, the melee one, STGDXYORSTOR.pac or somehting like that, anyway, i want to put the luigis mansion moon behind it, and then be able to texture the moon, also i dont want to get rid of the things that fly by on that stage, whatever i do it messes up,  :srs: so could someone tell me how to do it? step by step would be nice. thanks.

[Lockstin]

 :srs: anyone?