I upgraded the arcade today. The upgraded version took out Pacman so all those high scores were lost. I was able to find some flash games at pnflashgames.com including Pacman, Ms. Pacman, and Joust but the bad news is that it doesn't seem like the high scores are recorded in the Arcade. I'm asking around to figure out if there's a way to fix this but, for now, you'll have to enjoy the games without the benefit of your high scores being recorded.