Dell :: Inspiron 1000 Speakers Not Detected

My grandpa gave me his old insprion 1000 and i wiped it clean and reinstalled windows xp on it. i was hoping to use this computer for my music (itunes, syncing ipods ect.)

but the speakers will not work. i go into the control panel and under the sounds and devices it says that there is no audio device.

i know that this computer has speakers build in and i can see them on the front on the computer. Also when i try and plus external speakers in it doesn't detect them either.