XP vs. Vista Movie Maker - time and date stamp difference?

I have downloaded a number of digital home videos from my camcorder onto my
XP pc and then written them to .wmv files. Whenever I reload one of these
..wmv files into my XP's Movie Maker, it automatically breaks up it up into
scenes and prominently displays the date and time stamp of when each was
taken.

When I reload these same .wmv files into my Vista Movie Maker I can't find
where the time stamps are. Can someone help point me the right direction? I
find it hard to believe they are not there and available somehow.

Thanks, ds