Dusty:
[link]
It is the first installer blahblahblah link. But I have to warn you, the program is in japanese, you need to either set your computer's language to japanese or run the program using AppLocale or the symbols in the program will just be boxes/not work. Though there is an english patch for the program that translates most of it. It is a pretty user unfriendly program. I'd watch some youtube tutorials if you are serious about using the program.
I technically have never even run or opened the program because it is windows only and I'm on mac, but I was going to record the voice files with my mac and then transfer them to my mom's windows comp and configure the voicebank or just get a copy of windows XP OS and run it on my mac using bootcamp. Everything I know about utau is from tutorials on youtube and dA....