Thanks again William.

Last night, I paused HTTrack and let my pc laptop sleep. This morning, I
looked and there's a popup window (the one that pops up when a mirror download
has finished). 

I don't understand because I think there are still plenty to be downloaded
when I paused (& let my pc sleep) last night. It's acting like it's finish the
mirroring process!

Is everything ok? I can't check now cos I am using a different laptop now.