i did this. Everything work ok, unless text for description that apear under each field. Where i have a description for field its ok, the description apear, but where i have no description apears messages like "form:fieldtrans:_________:description"... You can see this here http://www.flickr.com/photos/47947203@N08/5167604364/ .
I suggest that you always supply a description - just make it an empty string (or a single blank character if that does not work).
thanks, i will try :)