Problem reinstalling openoffice

[Steven Stern]

I've tried Google and the archives, without success.

For reasons that are best left obscure, I removed openoffice from my system.

I'm now trying to reinstall it. I've downloaded 

  openoffice.org-1.1.0-6.i386.rpm
  openoffice.org-libs-1.1.0-6.i386.rpm
  openoffice.org-i18n-1.1.0-6.i386.rpm

Attempting to install via
  
   rpm -ivh openoffice*

results in 
    error: Failed dependencies:
    libxpcom.so is needed by openoffice.org-libs-1.1.0-6

the file is on my system
   # locate libxpcom.so
   /usr/local/mozilla/MozillaFirebird/libxpcom.so
   /usr/local/src/mozilla/libxpcom.so

How do I tell rpm where to find it?

--
   Steve