I received the file and tested it.
Well I'm sorry to report the bug is still there
When I set date validation in Types and I input thru the front end via CRED I got "Please enter a valid date" if :
- I enter the date directly like 31/12/2013
- I pick up a date for months like "6 février 2003" but the months without an accent are OK.
Also the format "Month dd, yyyy" is not conventional in French and is not the default I set in WP.