Well I did something slightly foolish. I installed a new OS (windows 7 *cough gamer edition cough*) on a system to which I do not have a CD containing drivers for this thing.
So now i've got a nice shiny new OS and no internet connectivity or sound.
motherboard- Soyo P4I865PE Plus Dragon 2,
OS- windows 7 gamer edition,
memory- 1.5 gb ddr ram,
hard drive- 120 gb hdd,
video card- radeon 9800 gpu