I don't know you case fully. I'm not used to this approach anymore.
So basically the entire contents of all four XP related folders? (XHOM, XPRO, WinXP_Home_SP3, and WinXP_PRO_SP3 in my case)?
Add all file from XHOM, XPRO folders and files from sub folders
And all files below WinXP_Home_SP3 and WinXP_PRO_SP3 ASMS folders.
And I386\$OEM$\ - \$OEM$\TEXTMODE, if you use this. http://www.msfn.org/...drivers-method/
Yes, simplified approach: the entire contents of all four XP related folders
This is not required, if relating files are within first 4GB of DVD media by chance.