I think they're the wrong way round aren't they? Maybe:
FileTime() as DateCreated,
Now( ) as DateUpdated,
However! You may find that Now() slows down your load time considerably as it is evaluated every second. This also means that if your table takes longer than a second to load you will get differing values. Maybe use a variable at the end of the table load
Let vUpdate = Now();
Now() is only invoked once then. Or else look at the other qvd file functions in the reference manual - there are many of them!