Why use HTTrack for such a simple job?  You can use IE - make a bookmark, then
set up a "Synchronize...."  You can go up to 3 levels deep, as I recall.  Then
look in your cache - "Temporary Internet Files" - and move the graphics as you
like.

Another option:  install Firefox, then install the "down them all" extension. 
Very simple, and Firefox beats the hell out of any other browsers that I've
ever seen - so far - though it takes a while to start up.