I think, you have D1386 motherboard, according to your data.
Go to downloads, select Acessories -> Mainboards -> D13xx -> D1386
Then select "Audio (on board)" and "Show operating system without support" + "Windows XP" on categories screen. Press 'Go' button and you will be displayed some of driver downloads. For ex., http://support.fujitsu-siemens.com/Down ... 1CE385A5BF