1) That's the fun of the game, to figure out how the ICs work. (The way that one works is that the slider loads the number in your card into address 1, and the the target number is in address 0. You can either set address 0 to 179, the number on your card, or set address 1 to whatever's in address 0.)
2) Sorry! I'll keep that in mind.
3) It.... kinda... doesn't very much. I guess you have to take care to figure out what everything does, though?