Currently Amber is only available in English and German. If you wish to translate the mod, you should contact us via <amber(at)welho.net>. Please note that Amber contains a rather large amount of text (over 116 000 words*), so don't take up this challenge lightly. In addition, we would like to emphasise how important it is that the translator is decently fluent, not only in the language he/she is going to translate Amber to, but also in English.
* With all code and manual line breaks removed (i.e. full pages of running text, at 36 rows per page and 55 characters per row, which is about the same as your average fantasy paperback), the contents of Amber's dialog files total just over 300 pages of text (303 and a half to be exact).

This does not include the tp2, but that's just peanuts compared to the dialogs. In terms of the dialog.tlk, we are adding almost 5000 new entries. So please think carefully before volunteering.
EDIT:
You can discuss the currently available translations in these threads:
German
Spanish
Edited by Meira, 18 September 2009 - 12:43 AM.