Missing dll file

I made the mistake of installing Works Suite 2001
over my works 99. It was a very bad installation.
I uninstalled and sent it back to Microsoft.
Now I am missing MSO97.dll and can't use Word at
all.
I don't know how to find this file. I have read all of
the instructions at the Dell Information, but am more
confused than ever.
Can someone give specific instructions as to where
I can look. I used the System File Checker, but
didn't have any luck at all. I put the Win98 CD in,
put the Word CD in, but each time it didn't work.
I don't know what to say when it asks me for a
path.
Thanks for your help.