first the Pokemon is suppose to be in the box all ready meaning you have to have caught another Pokemon and you have to go to move Pokemon on Amnita's PC otherwise weird things like Pokemon going above the level limit can happen
second if you use these the Pokemon wouldnt sometimes change gender(forget who made these but they were posted many pages back)
Black
Mark to make Shiny(keeps nature and Gender)
020195b4 fc24f7e8
02001e00 73b4b4ff
02001ffc bdf8bcff
02001ed0 88f488b0
02001ed4 88384044
02001ed8 08c04060
02001edc 78bc00c0
02001ee0 0f640764
02001ee4 80784320
White
Mark to make Shiny(keeps nature and Gender)
020195d0 fc16f7e8
02001e00 73b4b4ff
02001ffc bdf8bcff
02001ed0 88f488b0
02001ed4 88384044
02001ed8 08c04060
02001edc 78bc00c0
02001ee0 0f640764
02001ee4 80784320