There are several configurations on that unit. Once came with the AC97 audio, the other was the conexant
Here are the 2 drivers I found.
Sometimes, you need to load the motherboard chipset driver first on a new xp install.
Drivers and info disk available at mpcdrivers.com
http://www.mpcdrivers.com/sylvia/Suppor ... 0.0565.exe - Gateway Conexant Audio Driver Version: 6.14.10.0565
Supports: Windows XP
Note: This file contains the Windows XP Conexant audio driver for the Gateway notebook computers listed below. English, Spanish, and Japanese instructions are included in the file.-+
http://www.mpcdrivers.com/sylvia/Suppor ... 01-001.exe - Gateway Intel(r) Chipset Driver Revision: 6.2.1.1001
Supports: Windows XP
Note: This file contains the Windows XP Intel Chipset drivers for the Gateway notebook computer models listed below.