I've been searching the forum on how to do this, but evidently I haven't entered the right search terms.
I've looked thru the custom installation wizard on how I might be able to do this, but see no language options
Is this not an option, or do I need a Spanish Office CD to do this?

I'm also experimenting with installing XP in Spanish, as there is an option in the setupmgr.exe to set language.
wish me luck, and any tips would be appreciated

well, long time ago i downloaded a copy of a working office shrinker (spanish lang).
follow steps as explained on the office shrink thread with attached .exe.
i've been successful and my sp1-lite installation works perfect

Yeah, I don't know that it helped with the spanish thing, it seemed to be more of a shrinker/installer
I think I need a spanish version of 2003 and XPpro

xp language is independant for this, but you need to have office on spanish, other way this shrinker won't work.
but i can't help if you want to use the english located office with spanish keyboard and spanish language settings, sorry

For me it´s also not working, using an English version of XP Pro (SP2, nLited ) and office 2k3 Spanish... I´ll use an international Spanish keyboard layout so that will be allright.

Shrinking is not always working fine, your one of few that could it get to work for the Spanish version