Localization for RTIR

I have been assigned to set up RTIR so that our team
can evaluate it before deciding to rely on it.
I would like to have the RTIR interface in Greek if possible
before presenting it. Is there an RTIR localization module for this?
If i should do it manually is there at least a guide to help me?
Doing a manual translation i should know where the translated text should
be placed. I suppose that all localization info is concetrated in one
place somehow.

Thank you in advance.