may I jump in? ;-)
would have to translate this thingy as well.
Admin etc. does not matter, but anything frontend related should be translated (currency, date, phrases like "Shipping cost", etc…
Are strings handled in standard wordpress style (language files) or is everything hardcoded into the theme?
If it is the latter, this would cause major trouble with every update/upgrade, thats why I ask.
Cheers
Martin