In this case, you want to point the 0x08FFFFFF (either in the ASM file or in the ROM, just remember that doing it in the ROM means you need to reverse hex the pointer, while if you do it in the ASM file, it will be done automatically by the compiler) to some aligned free space (that is, the pointer ends with a 0, 4, 8 or C) and fill in the entries of the table with little endian pointers to the pallets which are to be used in the background of the mugshot.
Little Endian = Reverse Hex.
That should help you!
Thanks Jambo51. Now I understand what I was doing wrong and it works. Nice work figuring out how to do this, by the way.