Well, I ran out of disk space after 52G and the site is not done mirroring...
:-(

So now I need to remove files from disk and make room for more pages from the
site, before I can start HTTrack again.

I've read through the help and other info here -- it sounds like I can do what
I need, but I'm not sure how to set it up correctly?
After deleting the files from disk, I'd like to be sure I have HTTrack set up
to start saving pages to disk where it left off last, but *without* re-saving
to disk those pages I deleted (except if they've since been updated on the
website).  Likewise on future runs of HTTrack I'd like it to only save to disk
new pages and pages that have been changed, whether they currently exist on my
disk or not.

Do I understand this correctly, is this possible?  If so would you please
point me to the information I need?  I'm afraid if I don't have this set up
correctly I'll be doing this from scratch again... and again... and again...
:-)  Thank you again for any help you can give. 

Kind regards,
--appyface