Solved: Unable to install chipset drivers

Download the latest drivers from Intel's website:
- Intel Matrix Storage Manager 32-bit XP Pro
- Intel Chipset Software Installation Utility 32-bit XP Pro

Slipstream the drivers contained within the 'Storage Manager' into the SP3 installation CD using nLite. After Windows installation is complete, you should be able to install Chipset drivers (see above). I believe that the chipset driver provided by Toshiba is either corrupt or incomplete.

After the described procedure, I was able to install the rest of the drivers and finish the installation.