You create a unattended CD right ? So the i386 folder is place inside c:\xpcd\ folder you create "$OEM$\$1\install\Applications\Office2003" and, inside, you put your unattended install of Office2003. the $1 folder is copy right after the setup copy files from the cd to install the system. Up to you to choose the way you install this unattended install of Office 2003