I'm starting to translate the help on line of zimbra for Italian.
I can help the spanish localizers team too, if they need my help.
Note for the other localizations teams:
I'm currently using the opensource tool OmengaT (www.omegat.org) written in java and running fine under Linux (x86) Windows and obviously OSX!
I'm searching some free TMX glossaries or a repository of .PO to convert in TMX using this tool in python:
if you have better solutions please let's me know