can't reinstall xp - need some help here

want to reinstall xp (without having to reformat my hard
drive). when i try to reinstall (boot from CD) i get the
message "INF file txtsetup.sif is corrupt or missing,
status 14. Setup cannot continue."
I've tried copying a textsetup.sif that i found in
another folder but i get the same message.
tried looking for that file on the internet but no luck.
anyway, from the research i've done this particular .sif
file is a record of how your pc is set up so each file is
unique to that machine.
anything i can do to get a reinstall running on my
machine? any ideas would be greatly appreciated.
thanks,
tim

I take it you can not boot into Windows, even Safe Mode?

Rich