drivers for VAIO VGN-CR22G
the rest driver can be installed by windows update except following 2 drivers, which you need install it manually.

VAIO VGN-CR22G Camera driver Version 2.7.01.08030
http://download.css.ap.sony.com/vaio/downloads/080118/EP0000144314.exe

Atheros Wireless LAN Driver for VAIO VGN-CR22G Version 7.4.2.15
http://download.css.ap.sony.com/vaio/downloads/1010/SOACCU-01363007-UN.exe

Video Graphics Driver for VAIO VGN-CR22G Version 7.14.10.1295, this graphic driver can be installed by windows update too.

Before install the windows XP, enter BIOS by press F2 during boot(we would like to disable SATA so that no driver disk is needed during the XP install).
Locate "Onboard Devices".
1. change "Flash Cache Mod" from "Enabled" to "Off".
2. change
"SATA Operation"from "AHCI"to "ATA".
Save and exit. please return to its original value after xp installation complete.

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In order to install xp without provide sata driver at the begining. please enter BIOS by press F2 when power on,

1. locate "Flash Cache Mod" under "Onboard Devices", change state from "Enabled" to "Off"

2. change "SATA Operation" from "AHCI" to "ATA"

please return its original value after install all driver.