Here are a couple of XP64 drivers that might help although XP64 isn't supported in Bootcamp so a lot of this is just guess work I'm afraid.
1) hardware id for AUDIO DEVICE ON HIGH DEFINATION AUDIO BUS
HDAUDIO\FUNC_01&VEN_1013&DEV_4206&SUBSYS_106B4F00&REV_1003
HDAUDIO\FUNC_01&VEN_1013&DEV_4206&SUBSYS_106B4F00
Manufacturer Cirrus Logic
No Win XP 64 driver found :(
2) HARDWARE ID FOR ETHERENT CONTROLLER
PCI\VEN_10DE&DEV_0AB0&SUBSYS_CB7910DE&REV_B1\3&B1BFB68&0&50
nVidia nForce 9300 Networking Controller
ftp://download.asrock.com/drivers/nVidia/AllIn1/AllIn1_XP64(NF_2006_Novga).zip
3) HARDWARE ID FOR NETWORK CONTROLLER
PCI\VEN_168C&DEV_002A&SUBSYS_008F106B&REV_01\4&DE8D444&0&00A8
Atheros AR5B91 driver version 7.7.0.456
http://www.atheros.cz/inffile.php?inf=70&bit=64&atheros=AR5B91&system=2