Isn't it possible to create an option which allows to 
choose whether we want the engine to update or not the 
files ?As an example, this WE I was downloading some beautiful 
pictures of Hubble, but the site is more than 100 Mo.
I had to stop yesterday by midnight because my little modem 
has not yet finished downloading it all ...
But when I'll ask Httrack to go on, it will first take 
something like 4 hours to test whether the files already 
downloaded have been updated or not ...

Perhaps there is yet an option but which one ?
Thanks in advance for your help