[Koha] how to install koha

hello every body, I am a Goverment University Islam's student. by the way, How to install KOHA on WIndows? when i opened the folder of koha and i tried to install,, i confused how to do it. n there isn't manual to install koha on windows.. i had made database on xampp, but i don't know where is file to import inmy database,, n one more,, the configuration is too much, so that was made me confused? please send me the way how to install koha on windows? i used windows xp. thanks.. i really hope your reply..