Can you send along a photo of the " helper white block which is supposed to be sticked on top" I think what you are refering to is what most of us would call a breadboard all by itself. generally these little white blocks as you reference them have a bunch of holes in the top side where you put a single wire in the hole and connect it off elsewhere. the holes are connected internally in columns genreally from the middle outwards such that one or more IC’s can be placed down the middle. each column forms an internally connected strip and all wires in that column will be connected to each other. that said, break out an ohm meter and explore a little bit. you won’t hurt the little white block by exploring what holes are connected to what other holes.
Eric