I use multilanguage silverstripe (istructions are here: http://www.ssbits.com/tutorials/2011/using-translatable-to-create-a-simple-multilingual-site/) to use it,en,es,fr language.
In my template I define
<% _t('WidgetArea.TEST','Choose file: ') %>
then I add in shappire/lang the correct translation of TEST (in each language file).
When I change language in my site I can't see correct translation..
Is my problem clear?