I`ve been having conserts here in finland with this wonderful song, and my advice to you is what the others said: get to know both hands first. when you are sure that both hands are doing well, try to get them together, it`s NOT easy...as you can see there is 12 (3) tones in the left hand and 15 (4)tones in the right hand...so it`s really hard work for the brains!! it`s nothing you can learn in one day...you have to "memorize" it, if you know what I mean. I have notes where the left hand has 12 tones and the right hand 15. I think it`s easier like that, because there are some tones which are played at the same time. There is some logic, really! Just point out (with a pen) those tones which are played at the same time, then try to make it slowly, and you can hear something that sounds really good!
There is one thing i want to tell you also. when you`ve learned to play it a little better/faster, and you think you could probably have a small "soiree" for someone, begin the song more quiet and not so fast!! it`s important, first you begin it "slowly" and later you can play faster and faster and it makes a great feeling, both for the audience and also for you! it feels SO great when it`s coming to it`s end and the speed is huge! then when it comes to the B part, u can rest alittle (i bet your fingers are tired, atleast in the beginning of your practising...) and remember to paint!!!you have to let the right hand play the solo very clear and like someone was singing...like a beautiful voice. when you`ve practised more, your fingers are getting used to the speed and you can play the song as fast as you want to!!
I hope this gave you some ideas, and i hope also that my language is good enough to explain these things...

Spend some good time with your pianos all of you! Email me if you want to!