compaq presario 5000 video card help

[flamedd]

i have an old compaq presario 5000. it only had an 8mg video card built in so i bought am ATI Radion 9250 video card. i have done everything that ati has told me to do but it dosnt show any picture. does anyone know if there is somthing that you have to do or instal for my computer.(i knowits not the card because i have it installed on another computer at the time

Someone please help

Thanks, derick