How do i get itunes music onto windows mobile?

Ok well i buy my music from itunes and i transfered my songs to my pda and they wont work becuase its an ACC file which windows mobile cant read . so i think i need itunes for it how do i get itunes for the windows mobile or is there another program that can allow me to play it on there without converting it becuase converters dont work now becuase the files are protected please help me