That looks like it has the same selection scheme as the one I just helped someone with: 20 letters and 8 numbers, skipping the I and the O, for 160 selections total. Thus, the same skin I created for him will work for you. Run the skin, take note of here each song is on the screen, and make the labels on the real jukebox match, and you're in business. He wired his buttons up to a keyboard hack; since you don't have to worry about multiple buttons being pressed at once, a keyboard hack is ideal. Note that when you create the control map, you'll have to account for I and O being missing, so the J button gets mapped to BTN_I, K mapped to BTN_J, and so on:
L -> BTN_K
M -> BTN_L
N -> BTN_M
P -> BTN_O
Q -> BTN_P
etc, up to V -> BTN_T.
I'll have to dig up that skin and send it to you...
--Chris