pakok

hey guys, can you help me? i want to install linux 9 on my pc but linux cant recognize my hd, i used 2 run linux on an ide hd and i can install it but i switched to sata now and it says no harddrive. my mobo is msi p6n sli v2, x2 sata hd a want to add linux with my 2 other os, media center edition and xp pro sp2 also can i add another os? i hav a jas mac os-x 10.4.8 and same problem, it cannot see mt sata hd