shadowsurfer

i have a foxconn PC 945GZ7MC Rev 1.1 mobo with a 3.2ghz cpu and was wondering what type of graphics card i need. i have a 256mb radeon hd2400 pro lp graphics card will it work for the mobo i have or have i just wasted more money on them????? pci express aint got a clue what this is but my board has it im told and the card is as well this is all the information i can give coz its all i no....