Yes, someone had it right about Liability. You set up the balls like snooker, and most people play it short-rack with the red balls (cherries). Instead of 15 cherries, most people play with 5 or 6 cherries IIRC (it's been a few years since I've played). You have to make a cherry, then pot a numbered ball, until all the cherries are gone, just like snooker. Again, in the 'D' you set it up 3-4-2, 5ball in the middle of the table, the pink 6 on the spot and the black 7 on the spot below that. On that table at hard times, the corner pockets will BARELY fit a snooker ball. The pockets are much, much, much tighter than a regular snooker table. They are rounded a bit more, so many shots that can be potted on a regular English snooker table, can't be pocketed on this one. Balls on the rail, or up to a foot off the rail can't be pocketed, even if you roll them super soft. That's the way the table is, and it's lightning fast.
About scoring, yes the 3ball is worth 3 points, the 4ball is 4 points, and so on. Each cherry is 1 point. A foul is -4 points, unless you foul and hit a numbered ball, then the foul becomes negative whatever numbered ball you hit (i.e. if you are on the 2ball and you hit the 7ball first, that's -7 points instead of 4). So if you hook the person following you, and they foul, you get paid from them. If the person that shot after you sold out to the next person, he would have to pay that person too. It can be a very brutal game.
I used to play $1-$2 per point, and you can lose $100 within 30 minutes very easily. I used to think playing for $5 or $10 per point was HUGE, but $50 per point, that is unreal! You could win thousands in a half hour, depending on how good you play, of course.
One more thing, to the poster that said he would wager that someone couldn't run out the 2-7 ball with ball in hand on that particular table at Hard Times- I have seen Parica in a $10 per point liability game on that table, and he ran cherry-ball a few times and finished with running out the 2-7. I watched for a couple of hours and he did it twice. This was a few years ago. Parica was firing balls in like it was 9ball! SICK!