a) The diacritical characters are no problem at all.
d)I did the transfer to TMG some months ago, and I entered all my dates in the UFT free form field in Dutch. In TMG I did not find a free form field and the dates were in English. For the moment I am not yet acquainted enough with TMG to tell you if you choose for a French report that the dates will be translated into French.
b)and c) will have to be answered by someone else who knows TMG a lot better.