I just got to level 5. Yay! And then I was offered to take the 'Rainbow run' and earn some stuff. Sounded like fun, so I clicked 'yes'. I was delivered to this exciting new place, but in a second or so I was taken back to Ti street again! With no way of returning. There was, however, still a slider visible counting down to 30 seconds.
Now when I go to the quests book the Numismatic Hustle quest is visible and there's a 'try again' button, but when I click it nothing happens.
Update: I reloaded the game. Same thing happened! The stone-thing muttered something about this grandmother and that was that.
I'm using Firefox 3.6 for Mac.