Sata ports on compaq presario?

someone help me find the sata ports on my computor, i am trying to hook up my 360s drive to the port, but i cant find it. i know its illegal, idc. its a compaq presario model num sr1503wm, idk wat the hell im doin, my online freind is helpin me but he cant see the inside tht well.do u have aim, windows messenger or amsn, or yahoo messenger? if so msg me on my myspace, or if u jnow where i can find the sata ports. its myspace.com/sithshake