I am not sure the question is clear, at least it is not for me.

You mean that you recreated a bootable XP Home install CD from the C:\I386 directory on your hard disk + some more files?
And that now you don't have anymore the C:\I386 contents?
I don't think you can make setup copying files to C:\I386 directory unless you create a UNATENDED.TXT file with this directive or you install using WINNT32.EXE, if this is the question, but you can manually copy the \I386 directory from CD to hard disk.
jaclaz