Does anyone know how to increase magicka in Morrowind Game of the Year using the xbox 360, where the old black and white buttons are not an option?

Left and Right bumpers use the same input command as the old black and white buttons.

Left Bumper is white, Right Bumper is black.

Awesome. So pressing the left and right bumper in the same pattern as the old black/white buttons will achieve the same effect>? If this is so, thank you VERY much.