Apparently the original download is dead. Someone asked for it, I said I had a copy.
This is the Brick_Overlap I had in my addons folder.I take no credit for this, I just happened to have it sitting around and someone asked for it.
EDIT: someone responded to the thread with a link to a big ol' re-upload pack the guy made.
So this'll show up in searches better so it's not pointless but apparently I should've posted in the thread "I have this I'll re-upload it for you"
