OOo is one of many project who are well-known because of it's L10n or i18n project. For OOo, it's under the NL (Native Lang) project. They have enabled people around the world to contribute to the OOo project by translating it to their mother language. In the past, the translations were done by the l10n and i18n team locally and we had to submit the SDF or GSI files to the issue tracker or to Pavel in order to get it build.
With the new OOo 3 release, the development process has been changed. We could use the old method (local coordination) or use the online tool, called Pootle. Sun has generously provide the server for Pootle server and database to hold of the translations and Indonesia is already listed on the servers as well. Check this server for Indonesian project. There are two sub projects, OOo UI (User Interface) and OOo HC (Help Contents).
We encourage you to join this project to make Indonesian version of OOo available as soon as possible. The process is simple. All you have to do is sign up and change your option to join Indonesian team. Next, mail me your username so i can update your privileges and you are ready to start contributing to the project. Piece a cake huh? I'll be waiting for you on the project