Brigadoon Conductors Score?

Hi All Im hoping someone may be able to help me. We are doing Brigadoon up here, and I've struck a bit of a problem. I have been asked to conduct the orchestra, but the company we got the scores from have advised that there is no conductors score...! We 'have been sent all there is to send'. So, to lead the orchestra, i have the Vocal Score, which is pretty much useless, as the arragements appear to be different. Does anyone know where i can get a proper Piano - Conductors score? Im willing to purchase one!! Looking forward to hearing some replies! Many Thanks Ben Simon