Problems with transparent listbox

I've searched this forum far and wide for a working example of a transparent listbox... but to no avail...
Anyway, I actually found a working sample off the net and tweaked the code to remove redundancy and unwanted stuff... so all I have is the raw code to make the listbox transparent.

What I want to know is a couple of things...

#1 - How do you make the scroll bars transparent...
#2 - Is it possible to edit the code so that it works on the ListView control
#3 - Why is it that although the only one listbox is subclassed (via hWnd) every single listbox placed on the screen gets redrawn... is there anyway to fix this?

P.S. if you have better code or ways to make this code better then PLEASE by all means tell me... post it here...

Thanks in advance...