Byron - I didn't handle the licensing issue and this was in Fall 2005, I think. But you're right - we were an amateur theater group at a college and I wouldn't be surprised if it we simply slipped it in, hoping to not get caught (another theater group on campus did this with "Maybe This Time" when they put up Cabaret). It's placement was the same as the '95 tv-film.
I actually hate that song as the opening/closing of the '63 film, but then again, I also kinda hate the '63 film. I didn't appreciate how the show could be very funny if performed with the original script and a very talented cast. I was even meh on it when my college did it. It wasn't until I saw the North Shore production last year that I realized how fun the show really was.
After a little research, I have discovered North Shore did include the opening number in the show, sang by the teenage girls in the beginning (combined with "We Love You, Conrad") so the same idea as the '95 tv-film, but different placement.
http://www.nsmt.org/index.php?option=com_content&task=view&id=676&Itemid= North Shore always seems to get the rights to do stuff, as they also had "A Mother Doesn't Matter Anymore" (no "Kill a Man" ballet though - I'd have remembered that). I'm thinking the Roundabout might have those two songs in place as well.