Rob,
Is it possible that this bus tour has existed in the past, but just not in its present incarnation? I've seen the brightly colored bus for the last couple of years. It may not have been a "bar crawl", but it was a tour of the West end. It took me a year to find out how to contact them. Last Feb, I actually had the front desk at Rooms call them. They got an answer, and were told that the bus wasnt running that week. Dont think I was dreaming...